97521670 has 8 divisors (see below), whose sum is σ = 175539024. Its totient is φ = 39008664.

The previous prime is 97521667. The next prime is 97521701. The reversal of 97521670 is 7612579.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×97521670² = 19020952239177800, which contains 22 as substring.

It is a congruent number.

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, 4876074 + ... + 4876093.

It is an arithmetic number, because the mean of its divisors is an integer number (21942378).

Almost surely, 2^97521670 is an apocalyptic number.

97521670 is a deficient number, since it is larger than the sum of its proper divisors (78017354).

97521670 is a wasteful number, since it uses less digits than its factorization.

97521670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9752174.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 97521670 is about 9875.3060712061. The cubic root of 97521670 is about 460.2923000453.

It can be divided in two parts, 975 and 21670, that multiplied together give a triangular number (21128250 = T₆₅₀₀).

The spelling of 97521670 in words is "ninety-seven million, five hundred twenty-one thousand, six hundred seventy".