97657228 has 12 divisors (see below), whose sum is σ = 171787000. Its totient is φ = 48575232.

The previous prime is 97657177. The next prime is 97657229. The reversal of 97657228 is 82275679.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (97657229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62478 + ... + 64021.

Almost surely, 2^97657228 is an apocalyptic number.

It is an amenable number.

97657228 is a deficient number, since it is larger than the sum of its proper divisors (74129772).

97657228 is a wasteful number, since it uses less digits than its factorization.

97657228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126696 (or 126694 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 97657228 is about 9882.1671712231. The cubic root of 97657228 is about 460.5054745976.

The spelling of 97657228 in words is "ninety-seven million, six hundred fifty-seven thousand, two hundred twenty-eight".