87188036 has 96 divisors (see below), whose sum is σ = 190512000. Its totient is φ = 34449408.

The previous prime is 87187999. The next prime is 87188039. The reversal of 87188036 is 63088178.

It is a junction number, because it is equal to n+sod(n) for n = 87187984 and 87188002.

It is not an unprimeable number, because it can be changed into a prime (87188039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 486995 + ... + 487173.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2^87188036 is an apocalyptic number.

It is an amenable number.

87188036 is an abundant number, since it is smaller than the sum of its proper divisors (103323964).

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

87188036 is a wasteful number, since it uses less digits than its factorization.

87188036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 87188036 is about 9337.4534001515. The cubic root of 87188036 is about 443.4237648202.

The spelling of 87188036 in words is "eighty-seven million, one hundred eighty-eight thousand, thirty-six".