87612659 has 4 divisors (see below), whose sum is σ = 88721760. Its totient is φ = 86503560.

The previous prime is 87612649. The next prime is 87612661. The reversal of 87612659 is 95621678.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87612659 - 2¹⁶ = 87547123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87612619) 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, 554432 + ... + 554589.

It is an arithmetic number, because the mean of its divisors is an integer number (22180440).

Almost surely, 2^87612659 is an apocalyptic number.

87612659 is a deficient number, since it is larger than the sum of its proper divisors (1109101).

87612659 is a wasteful number, since it uses less digits than its factorization.

87612659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109100.

The product of its digits is 181440, while the sum is 44.

The square root of 87612659 is about 9360.1634066933. The cubic root of 87612659 is about 444.1424532082.

The spelling of 87612659 in words is "eighty-seven million, six hundred twelve thousand, six hundred fifty-nine".