87877872 has 50 divisors (see below), whose sum is σ = 254347808. Its totient is φ = 29292192.

The previous prime is 87877843. The next prime is 87877897. The reversal of 87877872 is 27877878.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 32608 + ... + 35199.

Almost surely, 2^87877872 is an apocalyptic number.

It is an amenable number.

87877872 is an abundant number, since it is smaller than the sum of its proper divisors (166469936).

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

87877872 is a wasteful number, since it uses less digits than its factorization.

87877872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67827 (or 67812 counting only the distinct ones).

The product of its digits is 2458624, while the sum is 54.

The square root of 87877872 is about 9374.3198153253. The cubic root of 87877872 is about 444.5901575184.

The spelling of 87877872 in words is "eighty-seven million, eight hundred seventy-seven thousand, eight hundred seventy-two".