87206812 has 24 divisors (see below), whose sum is σ = 190270080. Its totient is φ = 33976560.

The previous prime is 87206809. The next prime is 87206837. The reversal of 87206812 is 21860278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141262 + ... + 141877.

It is an arithmetic number, because the mean of its divisors is an integer number (7927920).

Almost surely, 2^87206812 is an apocalyptic number.

It is an amenable number.

87206812 is an abundant number, since it is smaller than the sum of its proper divisors (103063268).

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

87206812 is a wasteful number, since it uses less digits than its factorization.

87206812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283161 (or 283159 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 87206812 is about 9338.4587593457. The cubic root of 87206812 is about 443.4555930671.

The spelling of 87206812 in words is "eighty-seven million, two hundred six thousand, eight hundred twelve".