87061375 has 8 divisors (see below), whose sum is σ = 108652752. Its totient is φ = 69649000.

The previous prime is 87061339. The next prime is 87061391. The reversal of 87061375 is 57316078.

It is not a de Polignac number, because 87061375 - 2⁹ = 87060863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348121 + ... + 348370.

It is an arithmetic number, because the mean of its divisors is an integer number (13581594).

Almost surely, 2^87061375 is an apocalyptic number.

87061375 is a deficient number, since it is larger than the sum of its proper divisors (21591377).

87061375 is an equidigital number, since it uses as much as digits as its factorization.

87061375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696506 (or 696496 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 87061375 is about 9330.6685183860. The cubic root of 87061375 is about 443.2089352045.

The spelling of 87061375 in words is "eighty-seven million, sixty-one thousand, three hundred seventy-five".