97565228 has 12 divisors (see below), whose sum is σ = 179725560. Its totient is φ = 46215072.

The previous prime is 97565201. The next prime is 97565231. The reversal of 97565228 is 82256579.

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, 641801 + ... + 641952.

It is an arithmetic number, because the mean of its divisors is an integer number (14977130).

Almost surely, 2^97565228 is an apocalyptic number.

It is an amenable number.

97565228 is a deficient number, since it is larger than the sum of its proper divisors (82160332).

97565228 is a wasteful number, since it uses less digits than its factorization.

97565228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283776 (or 1283774 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 97565228 is about 9877.5112249999. The cubic root of 97565228 is about 460.3608196121.

The spelling of 97565228 in words is "ninety-seven million, five hundred sixty-five thousand, two hundred twenty-eight".