87672132 has 30 divisors (see below), whose sum is σ = 229193118. Its totient is φ = 29223936.

The previous prime is 87672121. The next prime is 87672157. The reversal of 87672132 is 23127678.

It can be written as a sum of positive squares in only one way, i.e., 47527236 + 40144896 = 6894^2 + 6336^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 134973 + ... + 135620.

Almost surely, 2^87672132 is an apocalyptic number.

It is an amenable number.

87672132 is an abundant number, since it is smaller than the sum of its proper divisors (141520986).

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

87672132 is a wasteful number, since it uses less digits than its factorization.

87672132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270609 (or 270598 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 87672132 is about 9363.3397887720. The cubic root of 87672132 is about 444.2429276899.

The spelling of 87672132 in words is "eighty-seven million, six hundred seventy-two thousand, one hundred thirty-two".