87231859 has 16 divisors (see below), whose sum is σ = 104670720. Its totient is φ = 71638560.

The previous prime is 87231839. The next prime is 87231871. The reversal of 87231859 is 95813278.

It is a cyclic number.

It is not a de Polignac number, because 87231859 - 2⁵ = 87231827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87231839) 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, 232 + ... + 13210.

It is an arithmetic number, because the mean of its divisors is an integer number (6541920).

Almost surely, 2^87231859 is an apocalyptic number.

87231859 is a deficient number, since it is larger than the sum of its proper divisors (17438861).

87231859 is a wasteful number, since it uses less digits than its factorization.

87231859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13050.

The product of its digits is 120960, while the sum is 43.

The square root of 87231859 is about 9339.7997301869. The cubic root of 87231859 is about 443.4980445254.

The spelling of 87231859 in words is "eighty-seven million, two hundred thirty-one thousand, eight hundred fifty-nine".