87805152 has 36 divisors (see below), whose sum is σ = 249696720. Its totient is φ = 29268288.

The previous prime is 87805147. The next prime is 87805171. The reversal of 87805152 is 25150878.

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152152 + ... + 152727.

It is an arithmetic number, because the mean of its divisors is an integer number (6936020).

Almost surely, 2^87805152 is an apocalyptic number.

It is an amenable number.

87805152 is an abundant number, since it is smaller than the sum of its proper divisors (161891568).

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

87805152 is a wasteful number, since it uses less digits than its factorization.

87805152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304895 (or 304884 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 87805152 is about 9370.4403311691. The cubic root of 87805152 is about 444.4674891014.

The spelling of 87805152 in words is "eighty-seven million, eight hundred five thousand, one hundred fifty-two".