97621953 has 48 divisors (see below), whose sum is σ = 156229248. Its totient is φ = 53856000.

The previous prime is 97621921. The next prime is 97621957. The reversal of 97621953 is 35912679.

It is not a de Polignac number, because 97621953 - 2⁵ = 97621921 is a prime.

Its product of digits (102060) is a multiple of the sum of its prime divisors (315).

It is not an unprimeable number, because it can be changed into a prime (97621957) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 646428 + ... + 646578.

It is an arithmetic number, because the mean of its divisors is an integer number (3254776).

Almost surely, 2^97621953 is an apocalyptic number.

It is an amenable number.

97621953 is a deficient number, since it is larger than the sum of its proper divisors (58607295).

97621953 is a wasteful number, since it uses less digits than its factorization.

97621953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 315 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 97621953 is about 9880.3822294484. The cubic root of 97621953 is about 460.4500211603.

The spelling of 97621953 in words is "ninety-seven million, six hundred twenty-one thousand, nine hundred fifty-three".