97885797 has 4 divisors (see below), whose sum is σ = 130514400. Its totient is φ = 65257196.

The previous prime is 97885793. The next prime is 97885807. The reversal of 97885797 is 79758879.

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 97885797 - 2² = 97885793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97885797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97885793) 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, 16314297 + ... + 16314302.

It is an arithmetic number, because the mean of its divisors is an integer number (32628600).

Almost surely, 2^97885797 is an apocalyptic number.

It is an amenable number.

97885797 is a deficient number, since it is larger than the sum of its proper divisors (32628603).

97885797 is a wasteful number, since it uses less digits than its factorization.

97885797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32628602.

The product of its digits is 8890560, while the sum is 60.

The square root of 97885797 is about 9893.7251326283. The cubic root of 97885797 is about 460.8644692348.

The spelling of 97885797 in words is "ninety-seven million, eight hundred eighty-five thousand, seven hundred ninety-seven".