87317875 has 8 divisors (see below), whose sum is σ = 108972864. Its totient is φ = 69854200.

The previous prime is 87317873. The next prime is 87317887. The reversal of 87317875 is 57871378.

It is a happy number.

It is not a de Polignac number, because 87317875 - 2¹ = 87317873 is a prime.

It is a super-2 number, since 2×87317875² = 15248822589031250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87317873) 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, 349147 + ... + 349396.

It is an arithmetic number, because the mean of its divisors is an integer number (13621608).

Almost surely, 2^87317875 is an apocalyptic number.

87317875 is a deficient number, since it is larger than the sum of its proper divisors (21654989).

87317875 is an equidigital number, since it uses as much as digits as its factorization.

87317875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698558 (or 698548 counting only the distinct ones).

The product of its digits is 329280, while the sum is 46.

The square root of 87317875 is about 9344.4034052474. The cubic root of 87317875 is about 443.6437687916.

The spelling of 87317875 in words is "eighty-seven million, three hundred seventeen thousand, eight hundred seventy-five".