97881372 has 96 divisors (see below), whose sum is σ = 262295040. Its totient is φ = 31947696.

The previous prime is 97881367. The next prime is 97881383. The reversal of 97881372 is 27318879.

It is a super-3 number, since 3×97881372³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 586033 + ... + 586199.

It is an arithmetic number, because the mean of its divisors is an integer number (2732240).

Almost surely, 2^97881372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97881372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131147520).

97881372 is an abundant number, since it is smaller than the sum of its proper divisors (164413668).

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

97881372 is a wasteful number, since it uses less digits than its factorization.

97881372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 239 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 97881372 is about 9893.5015035123. The cubic root of 97881372 is about 460.8575245568.

The spelling of 97881372 in words is "ninety-seven million, eight hundred eighty-one thousand, three hundred seventy-two".