87691522 has 16 divisors (see below), whose sum is σ = 134334720. Its totient is φ = 42923232.

The previous prime is 87691493. The next prime is 87691537. The reversal of 87691522 is 22519678.

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, 15943 + ... + 20725.

It is an arithmetic number, because the mean of its divisors is an integer number (8395920).

Almost surely, 2^87691522 is an apocalyptic number.

87691522 is a deficient number, since it is larger than the sum of its proper divisors (46643198).

87691522 is a wasteful number, since it uses less digits than its factorization.

87691522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977.

The product of its digits is 60480, while the sum is 40.

The square root of 87691522 is about 9364.3751526730. The cubic root of 87691522 is about 444.2756755928.

The spelling of 87691522 in words is "eighty-seven million, six hundred ninety-one thousand, five hundred twenty-two".