97655839 has 16 divisors (see below), whose sum is σ = 107606880. Its totient is φ = 88283520.

The previous prime is 97655821. The next prime is 97655849. The reversal of 97655839 is 93855679.

It is a cyclic number.

It is not a de Polignac number, because 97655839 - 2⁵ = 97655807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97655849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35949 + ... + 38569.

It is an arithmetic number, because the mean of its divisors is an integer number (6725430).

Almost surely, 2^97655839 is an apocalyptic number.

97655839 is a deficient number, since it is larger than the sum of its proper divisors (9951041).

97655839 is a wasteful number, since it uses less digits than its factorization.

97655839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730.

The product of its digits is 2041200, while the sum is 52.

The square root of 97655839 is about 9882.0968928664. The cubic root of 97655839 is about 460.5032912974.

The spelling of 97655839 in words is "ninety-seven million, six hundred fifty-five thousand, eight hundred thirty-nine".