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97631 = 175743
BaseRepresentation
bin10111110101011111
311221220222
4113311133
511111011
62031555
7554432
oct276537
9157828
1097631
1167396
12485bb
1335591
1427819
151dddb
hex17d5f

97631 has 4 divisors (see below), whose sum is σ = 103392. Its totient is φ = 91872.

The previous prime is 97613. The next prime is 97649. The reversal of 97631 is 13679.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (97613) and next prime (97649).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-97631 is a prime.

It is a super-2 number, since 2×976312 = 19063624322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 7 and base 10.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 97631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855 + ... + 2888.

It is an arithmetic number, because the mean of its divisors is an integer number (25848).

297631 is an apocalyptic number.

97631 is a deficient number, since it is larger than the sum of its proper divisors (5761).

97631 is a wasteful number, since it uses less digits than its factorization.

97631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760.

The product of its digits is 1134, while the sum is 26.

The square root of 97631 is about 312.4595973882. The cubic root of 97631 is about 46.0464244610.

The spelling of 97631 in words is "ninety-seven thousand, six hundred thirty-one".

Divisors: 1 17 5743 97631