97491864 has 16 divisors (see below), whose sum is σ = 243729720. Its totient is φ = 32497280.

The previous prime is 97491853. The next prime is 97491913. The reversal of 97491864 is 46819479.

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, 2031057 + ... + 2031104.

Almost surely, 2^97491864 is an apocalyptic number.

It is an amenable number.

97491864 is an abundant number, since it is smaller than the sum of its proper divisors (146237856).

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

97491864 is a wasteful number, since it uses less digits than its factorization.

97491864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062170 (or 4062166 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 97491864 is about 9873.7968380963. The cubic root of 97491864 is about 460.2454015107.

The spelling of 97491864 in words is "ninety-seven million, four hundred ninety-one thousand, eight hundred sixty-four".