97597655 has 4 divisors (see below), whose sum is σ = 117117192. Its totient is φ = 78078120.

The previous prime is 97597651. The next prime is 97597679. The reversal of 97597655 is 55679579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55679579 = 157 ⋅354647.

It is not a de Polignac number, because 97597655 - 2² = 97597651 is a prime.

It is a super-2 number, since 2×97597655² = 19050604522998050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97597597 and 97597606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97597651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9759761 + ... + 9759770.

It is an arithmetic number, because the mean of its divisors is an integer number (29279298).

Almost surely, 2^97597655 is an apocalyptic number.

97597655 is a deficient number, since it is larger than the sum of its proper divisors (19519537).

97597655 is a wasteful number, since it uses less digits than its factorization.

97597655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19519536.

The product of its digits is 2976750, while the sum is 53.

The square root of 97597655 is about 9879.1525446265. The cubic root of 97597655 is about 460.4118161507.

The spelling of 97597655 in words is "ninety-seven million, five hundred ninety-seven thousand, six hundred fifty-five".