87015216 has 20 divisors (see below), whose sum is σ = 224789432. Its totient is φ = 29005056.

The previous prime is 87015199. The next prime is 87015217. The reversal of 87015216 is 61251078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87015217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906361 + ... + 906456.

Almost surely, 2^87015216 is an apocalyptic number.

It is an amenable number.

87015216 is an abundant number, since it is smaller than the sum of its proper divisors (137774216).

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

87015216 is a wasteful number, since it uses less digits than its factorization.

87015216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812828 (or 1812822 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 87015216 is about 9328.1946806443. The cubic root of 87015216 is about 443.1305931618.

The spelling of 87015216 in words is "eighty-seven million, fifteen thousand, two hundred sixteen".