97522690 has 16 divisors (see below), whose sum is σ = 176463360. Its totient is φ = 38804080.

The previous prime is 97522673. The next prime is 97522699. The reversal of 97522690 is 9622579.

It is a happy number.

It is a super-2 number, since 2×97522690² = 19021350129672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97522699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23620 + ... + 27439.

It is an arithmetic number, because the mean of its divisors is an integer number (11028960).

Almost surely, 2^97522690 is an apocalyptic number.

97522690 is a deficient number, since it is larger than the sum of its proper divisors (78940670).

97522690 is a wasteful number, since it uses less digits than its factorization.

97522690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51257.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 97522690 is about 9875.3577150400. The cubic root of 97522690 is about 460.2939048049.

The spelling of 97522690 in words is "ninety-seven million, five hundred twenty-two thousand, six hundred ninety".