97920772 has 12 divisors (see below), whose sum is σ = 171432016. Its totient is φ = 48940200.

The previous prime is 97920769. The next prime is 97920793. The reversal of 97920772 is 27702979.

It is a super-3 number, since 3×97920772³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13183 + ... + 19225.

Almost surely, 2^97920772 is an apocalyptic number.

It is an amenable number.

97920772 is a deficient number, since it is larger than the sum of its proper divisors (73511244).

97920772 is a wasteful number, since it uses less digits than its factorization.

97920772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098 (or 10096 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 97920772 is about 9895.4925092185. The cubic root of 97920772 is about 460.9193522921.

The spelling of 97920772 in words is "ninety-seven million, nine hundred twenty thousand, seven hundred seventy-two".