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97467989 = 472073787
BaseRepresentation
bin1011100111100…
…11111001010101
320210101212221112
411303303321111
5144422433424
613401024405
72262315143
oct563637125
9223355845
1097467989
1150022163
1228785105
1317268188
14cd32593
15885460e
hex5cf3e55

97467989 has 4 divisors (see below), whose sum is σ = 99541824. Its totient is φ = 95394156.

The previous prime is 97467977. The next prime is 97467991. The reversal of 97467989 is 98976479.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97467989 - 212 = 97463893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97467959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036847 + ... + 1036940.

It is an arithmetic number, because the mean of its divisors is an integer number (24885456).

Almost surely, 297467989 is an apocalyptic number.

It is an amenable number.

97467989 is a deficient number, since it is larger than the sum of its proper divisors (2073835).

97467989 is a wasteful number, since it uses less digits than its factorization.

97467989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073834.

The product of its digits is 6858432, while the sum is 59.

The square root of 97467989 is about 9872.5877560040. The cubic root of 97467989 is about 460.2078282691.

The spelling of 97467989 in words is "ninety-seven million, four hundred sixty-seven thousand, nine hundred eighty-nine".

Divisors: 1 47 2073787 97467989