97447872 has 56 divisors (see below), whose sum is σ = 269053056. Its totient is φ = 31068928.

The previous prime is 97447871. The next prime is 97447879. The reversal of 97447872 is 27874479.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97447871) 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, 6618 + ... + 15449.

Almost surely, 2^97447872 is an apocalyptic number.

97447872 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

97447872 is an abundant number, since it is smaller than the sum of its proper divisors (171605184).

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

97447872 is a wasteful number, since it uses less digits than its factorization.

97447872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22105 (or 22095 counting only the distinct ones).

The product of its digits is 790272, while the sum is 48.

The square root of 97447872 is about 9871.5688722715. The cubic root of 97447872 is about 460.1761644104.

The spelling of 97447872 in words is "ninety-seven million, four hundred forty-seven thousand, eight hundred seventy-two".