87165575 has 12 divisors (see below), whose sum is σ = 123526320. Its totient is φ = 59770560.

The previous prime is 87165569. The next prime is 87165581. The reversal of 87165575 is 57556178.

It is an interprime number because it is at equal distance from previous prime (87165569) and next prime (87165581).

It is not a de Polignac number, because 87165575 - 2⁸ = 87165319 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248870 + ... + 249219.

It is an arithmetic number, because the mean of its divisors is an integer number (10293860).

Almost surely, 2^87165575 is an apocalyptic number.

87165575 is a deficient number, since it is larger than the sum of its proper divisors (36360745).

87165575 is a wasteful number, since it uses less digits than its factorization.

87165575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498106 (or 498101 counting only the distinct ones).

The product of its digits is 294000, while the sum is 44.

The square root of 87165575 is about 9336.2505857544. The cubic root of 87165575 is about 443.3856839204.

The spelling of 87165575 in words is "eighty-seven million, one hundred sixty-five thousand, five hundred seventy-five".