97249644 has 36 divisors (see below), whose sum is σ = 254304960. Its totient is φ = 31298400.

The previous prime is 97249637. The next prime is 97249661. The reversal of 97249644 is 44694279.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 97249644.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45532 + ... + 47619.

Almost surely, 2^97249644 is an apocalyptic number.

It is an amenable number.

97249644 is an abundant number, since it is smaller than the sum of its proper divisors (157055316).

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

97249644 is a wasteful number, since it uses less digits than its factorization.

97249644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93190 (or 93185 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 97249644 is about 9861.5234117250. The cubic root of 97249644 is about 459.8639232029.

The spelling of 97249644 in words is "ninety-seven million, two hundred forty-nine thousand, six hundred forty-four".