87915361 has 4 divisors (see below), whose sum is σ = 91737792. Its totient is φ = 84092932.

The previous prime is 87915319. The next prime is 87915389. The reversal of 87915361 is 16351978.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87915361 - 2²³ = 79526753 is a prime.

It is a super-2 number, since 2×87915361² = 15458221399520642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87915301) 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, 1911181 + ... + 1911226.

It is an arithmetic number, because the mean of its divisors is an integer number (22934448).

Almost surely, 2^87915361 is an apocalyptic number.

It is an amenable number.

87915361 is a deficient number, since it is larger than the sum of its proper divisors (3822431).

87915361 is a wasteful number, since it uses less digits than its factorization.

87915361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822430.

The product of its digits is 45360, while the sum is 40.

The square root of 87915361 is about 9376.3191605235. The cubic root of 87915361 is about 444.6533697564.

The spelling of 87915361 in words is "eighty-seven million, nine hundred fifteen thousand, three hundred sixty-one".