97772620 has 24 divisors (see below), whose sum is σ = 223988688. Its totient is φ = 35553600.

The previous prime is 97772603. The next prime is 97772657. The reversal of 97772620 is 2627779.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221991 + ... + 222430.

It is an arithmetic number, because the mean of its divisors is an integer number (9332862).

Almost surely, 2^97772620 is an apocalyptic number.

It is an amenable number.

97772620 is an abundant number, since it is smaller than the sum of its proper divisors (126216068).

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

97772620 is a wasteful number, since it uses less digits than its factorization.

97772620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444441 (or 444439 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 97772620 is about 9888.0038430413. The cubic root of 97772620 is about 460.6867813066.

The spelling of 97772620 in words is "ninety-seven million, seven hundred seventy-two thousand, six hundred twenty".