87880715 has 16 divisors (see below), whose sum is σ = 114162048. Its totient is φ = 64557696.

The previous prime is 87880703. The next prime is 87880729. The reversal of 87880715 is 51708878.

It is a cyclic number.

It is not a de Polignac number, because 87880715 - 2⁴ = 87880699 is a prime.

It is a super-2 number, since 2×87880715² = 15446040137822450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9374 + ... + 16236.

It is an arithmetic number, because the mean of its divisors is an integer number (7135128).

Almost surely, 2^87880715 is an apocalyptic number.

87880715 is a deficient number, since it is larger than the sum of its proper divisors (26281333).

87880715 is a wasteful number, since it uses less digits than its factorization.

87880715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078.

The product of its (nonzero) digits is 125440, while the sum is 44.

The square root of 87880715 is about 9374.4714517673. The cubic root of 87880715 is about 444.5949518849.

The spelling of 87880715 in words is "eighty-seven million, eight hundred eighty thousand, seven hundred fifteen".