87432879 has 16 divisors (see below), whose sum is σ = 118589184. Its totient is φ = 57288000.

The previous prime is 87432871. The next prime is 87432893. The reversal of 87432879 is 97823478.

It is not a de Polignac number, because 87432879 - 2³ = 87432871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87432871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127672 + ... + 128354.

It is an arithmetic number, because the mean of its divisors is an integer number (7411824).

Almost surely, 2^87432879 is an apocalyptic number.

87432879 is a deficient number, since it is larger than the sum of its proper divisors (31156305).

87432879 is a wasteful number, since it uses less digits than its factorization.

87432879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358.

The product of its digits is 677376, while the sum is 48.

The square root of 87432879 is about 9350.5550102654. Note that the first 3 decimals coincide. The cubic root of 87432879 is about 443.8384537286.

The spelling of 87432879 in words is "eighty-seven million, four hundred thirty-two thousand, eight hundred seventy-nine".