87268915 has 4 divisors (see below), whose sum is σ = 104722704. Its totient is φ = 69815128.

The previous prime is 87268897. The next prime is 87268931. The reversal of 87268915 is 51986278.

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 87268915 - 2⁹ = 87268403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8726887 + ... + 8726896.

It is an arithmetic number, because the mean of its divisors is an integer number (26180676).

Almost surely, 2^87268915 is an apocalyptic number.

87268915 is a deficient number, since it is larger than the sum of its proper divisors (17453789).

87268915 is a wasteful number, since it uses less digits than its factorization.

87268915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17453788.

The product of its digits is 241920, while the sum is 46.

The square root of 87268915 is about 9341.7832880024. The cubic root of 87268915 is about 443.5608347995.

The spelling of 87268915 in words is "eighty-seven million, two hundred sixty-eight thousand, nine hundred fifteen".