87318761 has 8 divisors (see below), whose sum is σ = 88972800. Its totient is φ = 85670640.

The previous prime is 87318743. The next prime is 87318769. The reversal of 87318761 is 16781378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87318761 - 2⁶ = 87318697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87318769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37880 + ... + 40118.

It is an arithmetic number, because the mean of its divisors is an integer number (11121600).

Almost surely, 2^87318761 is an apocalyptic number.

It is an amenable number.

87318761 is a deficient number, since it is larger than the sum of its proper divisors (1654039).

87318761 is a wasteful number, since it uses less digits than its factorization.

87318761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959.

The product of its digits is 56448, while the sum is 41.

The square root of 87318761 is about 9344.4508131832. The cubic root of 87318761 is about 443.6452693131.

The spelling of 87318761 in words is "eighty-seven million, three hundred eighteen thousand, seven hundred sixty-one".