87388452 has 36 divisors (see below), whose sum is σ = 221306176. Its totient is φ = 29075760.

The previous prime is 87388447. The next prime is 87388453. The reversal of 87388452 is 25488378.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 87388398 and 87388407.

It is not an unprimeable number, because it can be changed into a prime (87388453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20793 + ... + 24639.

Almost surely, 2^87388452 is an apocalyptic number.

It is an amenable number.

87388452 is an abundant number, since it is smaller than the sum of its proper divisors (133917724).

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

87388452 is a wasteful number, since it uses less digits than its factorization.

87388452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488 (or 4483 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 87388452 is about 9348.1790740229. The cubic root of 87388452 is about 443.7632655692.

The spelling of 87388452 in words is "eighty-seven million, three hundred eighty-eight thousand, four hundred fifty-two".