97777768 has 32 divisors (see below), whose sum is σ = 200880000. Its totient is φ = 44248960.

The previous prime is 97777759. The next prime is 97777769. The reversal of 97777768 is 86777779.

It is not an unprimeable number, because it can be changed into a prime (97777769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18708 + ... + 23356.

It is an arithmetic number, because the mean of its divisors is an integer number (6277500).

Almost surely, 2^97777768 is an apocalyptic number.

It is an amenable number.

97777768 is an abundant number, since it is smaller than the sum of its proper divisors (103102232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97777768 is a wasteful number, since it uses less digits than its factorization.

97777768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4905 (or 4901 counting only the distinct ones).

The product of its digits is 7260624, while the sum is 58.

The square root of 97777768 is about 9888.2641550476. The cubic root of 97777768 is about 460.6948666442.

It can be divided in two parts, 9 and 7777768, that added together give a palindrome (7777777).

The spelling of 97777768 in words is "ninety-seven million, seven hundred seventy-seven thousand, seven hundred sixty-eight".