97727888 has 20 divisors (see below), whose sum is σ = 191302860. Its totient is φ = 48359424.

The previous prime is 97727867. The next prime is 97727893. The reversal of 97727888 is 88872779.

It can be written as a sum of positive squares in 2 ways, for example, as 49730704 + 47997184 = 7052^2 + 6928^2 .

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29933 + ... + 33036.

It is an arithmetic number, because the mean of its divisors is an integer number (9565143).

Almost surely, 2^97727888 is an apocalyptic number.

It is an amenable number.

97727888 is a deficient number, since it is larger than the sum of its proper divisors (93574972).

97727888 is a wasteful number, since it uses less digits than its factorization.

97727888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63074 (or 63068 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 56.

The square root of 97727888 is about 9885.7416514898. The cubic root of 97727888 is about 460.6165142434.

The spelling of 97727888 in words is "ninety-seven million, seven hundred twenty-seven thousand, eight hundred eighty-eight".