87990059 has 16 divisors (see below), whose sum is σ = 94058496. Its totient is φ = 82171200.

The previous prime is 87990047. The next prime is 87990101. The reversal of 87990059 is 95009978.

It is a cyclic number.

It is not a de Polignac number, because 87990059 - 2²⁰ = 86941483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87989995 and 87990022.

It is not an unprimeable number, because it can be changed into a prime (87990029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135674 + ... + 136320.

It is an arithmetic number, because the mean of its divisors is an integer number (5878656).

Almost surely, 2^87990059 is an apocalyptic number.

87990059 is a deficient number, since it is larger than the sum of its proper divisors (6068437).

87990059 is a wasteful number, since it uses less digits than its factorization.

87990059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 87990059 is about 9380.3016476017. The cubic root of 87990059 is about 444.7792685543.

The spelling of 87990059 in words is "eighty-seven million, nine hundred ninety thousand, fifty-nine".