87415212 has 18 divisors (see below), whose sum is σ = 204044428. Its totient is φ = 29127608.

The previous prime is 87415189. The next prime is 87415247. The reversal of 87415212 is 21251478.

It is a self number, because there is not a number n which added to its sum of digits gives 87415212.

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, 31039 + ... + 33737.

Almost surely, 2^87415212 is an apocalyptic number.

It is an amenable number.

87415212 is an abundant number, since it is smaller than the sum of its proper divisors (116629216).

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

87415212 is an equidigital number, since it uses as much as digits as its factorization.

87415212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405 (or 2704 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 87415212 is about 9349.6102592568. The cubic root of 87415212 is about 443.8085571868.

The spelling of 87415212 in words is "eighty-seven million, four hundred fifteen thousand, two hundred twelve".