87227136 has 162 divisors, whose sum is σ = 269200932. Its totient is φ = 27156480.

The previous prime is 87227111. The next prime is 87227171. The reversal of 87227136 is 63172278.

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

It is a self number, because there is not a number n which added to its sum of digits gives 87227136.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 665791 + ... + 665921.

Almost surely, 2^87227136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87227136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134600466).

87227136 is an abundant number, since it is smaller than the sum of its proper divisors (181973796).

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

87227136 is a wasteful number, since it uses less digits than its factorization.

87227136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 153 counting only the distinct ones).

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

The square root of 87227136 is about 9339.5468840838. The cubic root of 87227136 is about 443.4900402668.

The spelling of 87227136 in words is "eighty-seven million, two hundred twenty-seven thousand, one hundred thirty-six".