87436872 has 24 divisors (see below), whose sum is σ = 236808390. Its totient is φ = 29145600.

The previous prime is 87436861. The next prime is 87436889. The reversal of 87436872 is 27863478.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 53494596 + 33942276 = 7314^2 + 5826^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 607129 + ... + 607272.

Almost surely, 2^87436872 is an apocalyptic number.

It is an amenable number.

87436872 is an abundant number, since it is smaller than the sum of its proper divisors (149371518).

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

87436872 is a wasteful number, since it uses less digits than its factorization.

87436872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214413 (or 1214406 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 87436872 is about 9350.7685245652. The cubic root of 87436872 is about 443.8452102257.

The spelling of 87436872 in words is "eighty-seven million, four hundred thirty-six thousand, eight hundred seventy-two".