87995859 has 32 divisors (see below), whose sum is σ = 149460480. Its totient is φ = 44831232.

The previous prime is 87995827. The next prime is 87995867. The reversal of 87995859 is 95859978.

It is not a de Polignac number, because 87995859 - 2⁵ = 87995827 is a prime.

It is a super-2 number, since 2×87995859² = 15486542402295762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87995819) 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 31 ways as a sum of consecutive naturals, for example, 297 + ... + 13269.

It is an arithmetic number, because the mean of its divisors is an integer number (4670640).

Almost surely, 2^87995859 is an apocalyptic number.

87995859 is a deficient number, since it is larger than the sum of its proper divisors (61464621).

87995859 is a wasteful number, since it uses less digits than its factorization.

87995859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13019.

The product of its digits is 8164800, while the sum is 60.

The square root of 87995859 is about 9380.6108010086. The cubic root of 87995859 is about 444.7890411093.

The spelling of 87995859 in words is "eighty-seven million, nine hundred ninety-five thousand, eight hundred fifty-nine".