87317371 has 4 divisors (see below), whose sum is σ = 87537712. Its totient is φ = 87097032.

The previous prime is 87317353. The next prime is 87317381. The reversal of 87317371 is 17371378.

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 87317371 - 2²⁵ = 53762939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87317371.

It is not an unprimeable number, because it can be changed into a prime (87317311) 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, 109575 + ... + 110368.

It is an arithmetic number, because the mean of its divisors is an integer number (21884428).

Almost surely, 2^87317371 is an apocalyptic number.

87317371 is a deficient number, since it is larger than the sum of its proper divisors (220341).

87317371 is a wasteful number, since it uses less digits than its factorization.

87317371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220340.

The product of its digits is 24696, while the sum is 37.

The square root of 87317371 is about 9344.3764371947. The cubic root of 87317371 is about 443.6429152173.

The spelling of 87317371 in words is "eighty-seven million, three hundred seventeen thousand, three hundred seventy-one".