87880587 has 16 divisors (see below), whose sum is σ = 121040640. Its totient is φ = 56672352.

The previous prime is 87880579. The next prime is 87880601. The reversal of 87880587 is 78508878.

It is a happy number.

It is not a de Polignac number, because 87880587 - 2³ = 87880579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87880537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17658 + ... + 22080.

It is an arithmetic number, because the mean of its divisors is an integer number (7565040).

Almost surely, 2^87880587 is an apocalyptic number.

87880587 is a deficient number, since it is larger than the sum of its proper divisors (33160053).

87880587 is a wasteful number, since it uses less digits than its factorization.

87880587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The square root of 87880587 is about 9374.4646247132. The cubic root of 87880587 is about 444.5947360311.

The spelling of 87880587 in words is "eighty-seven million, eight hundred eighty thousand, five hundred eighty-seven".