87831058 has 32 divisors (see below), whose sum is σ = 154638720. Its totient is φ = 36637440.

The previous prime is 87831013. The next prime is 87831059. The reversal of 87831058 is 85013878.

It is a self number, because there is not a number n which added to its sum of digits gives 87831058.

It is not an unprimeable number, because it can be changed into a prime (87831059) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 92868 + ... + 93808.

It is an arithmetic number, because the mean of its divisors is an integer number (4832460).

Almost surely, 2^87831058 is an apocalyptic number.

87831058 is a deficient number, since it is larger than the sum of its proper divisors (66807662).

87831058 is a wasteful number, since it uses less digits than its factorization.

87831058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 87831058 is about 9371.8225548716. The cubic root of 87831058 is about 444.5111966451.

The spelling of 87831058 in words is "eighty-seven million, eight hundred thirty-one thousand, fifty-eight".