87492165 has 16 divisors (see below), whose sum is σ = 140280000. Its totient is φ = 46564992.

The previous prime is 87492127. The next prime is 87492187. The reversal of 87492165 is 56129478.

It is not a de Polignac number, because 87492165 - 2⁷ = 87492037 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1641 + ... + 13329.

It is an arithmetic number, because the mean of its divisors is an integer number (8767500).

Almost surely, 2^87492165 is an apocalyptic number.

It is an amenable number.

87492165 is a deficient number, since it is larger than the sum of its proper divisors (52787835).

87492165 is a wasteful number, since it uses less digits than its factorization.

87492165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12196.

The product of its digits is 120960, while the sum is 42.

The square root of 87492165 is about 9353.7246591933. The cubic root of 87492165 is about 443.9387495656.

It can be divided in two parts, 874 and 92165, that added together give a palindrome (93039).

The spelling of 87492165 in words is "eighty-seven million, four hundred ninety-two thousand, one hundred sixty-five".