87174372 has 12 divisors (see below), whose sum is σ = 203406896. Its totient is φ = 29058120.

The previous prime is 87174371. The next prime is 87174397. The reversal of 87174372 is 27347178.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×87174372² = 15198742267188768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87174372.

It is not an unprimeable number, because it can be changed into a prime (87174371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3632254 + ... + 3632277.

Almost surely, 2^87174372 is an apocalyptic number.

It is an amenable number.

87174372 is an abundant number, since it is smaller than the sum of its proper divisors (116232524).

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

87174372 is a wasteful number, since it uses less digits than its factorization.

87174372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264538 (or 7264536 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 87174372 is about 9336.7216944707. The cubic root of 87174372 is about 443.4005993373.

The spelling of 87174372 in words is "eighty-seven million, one hundred seventy-four thousand, three hundred seventy-two".