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97685 = 572791
BaseRepresentation
bin10111110110010101
311221222222
4113312111
511111220
62032125
7554540
oct276625
9157888
1097685
1167435
1248645
1335603
1427857
151de25
hex17d95

97685 has 8 divisors (see below), whose sum is σ = 134016. Its totient is φ = 66960.

The previous prime is 97673. The next prime is 97687. The reversal of 97685 is 58679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97685 - 28 = 97429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 2791 = 97685 / (9 + 7 + 6 + 8 + 5).

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 97685.

It is not an unprimeable number, because it can be changed into a prime (97687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361 + ... + 1430.

It is an arithmetic number, because the mean of its divisors is an integer number (16752).

297685 is an apocalyptic number.

It is an amenable number.

97685 is a deficient number, since it is larger than the sum of its proper divisors (36331).

97685 is a wasteful number, since it uses less digits than its factorization.

97685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803.

The product of its digits is 15120, while the sum is 35.

The square root of 97685 is about 312.5459966149. The cubic root of 97685 is about 46.0549123682.

The spelling of 97685 in words is "ninety-seven thousand, six hundred eighty-five".

Divisors: 1 5 7 35 2791 13955 19537 97685