97664925 has 12 divisors (see below), whose sum is σ = 161472800. Its totient is φ = 52087920.

The previous prime is 97664899. The next prime is 97664927. The reversal of 97664925 is 52946679.

It is not a de Polignac number, because 97664925 - 2⁵ = 97664893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97664927) 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 11 ways as a sum of consecutive naturals, for example, 651025 + ... + 651174.

Almost surely, 2^97664925 is an apocalyptic number.

It is an amenable number.

97664925 is a deficient number, since it is larger than the sum of its proper divisors (63807875).

97664925 is a wasteful number, since it uses less digits than its factorization.

97664925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302212 (or 1302207 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 97664925 is about 9882.5566024182. The cubic root of 97664925 is about 460.5175727549.

It can be divided in two parts, 97664 and 925, that added together give a palindrome (98589).

The spelling of 97664925 in words is "ninety-seven million, six hundred sixty-four thousand, nine hundred twenty-five".