87258879 has 6 divisors (see below), whose sum is σ = 126040616. Its totient is φ = 58172580.

The previous prime is 87258877. The next prime is 87258907. The reversal of 87258879 is 97885278.

It is not a de Polignac number, because 87258879 - 2¹ = 87258877 is a prime.

It is a super-2 number, since 2×87258879² = 15228223928673282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87258877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4847707 + ... + 4847724.

Almost surely, 2^87258879 is an apocalyptic number.

87258879 is a deficient number, since it is larger than the sum of its proper divisors (38781737).

87258879 is a wasteful number, since it uses less digits than its factorization.

87258879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9695437 (or 9695434 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 87258879 is about 9341.2461160169. The cubic root of 87258879 is about 443.5438308556.

The spelling of 87258879 in words is "eighty-seven million, two hundred fifty-eight thousand, eight hundred seventy-nine".