87492879 has 12 divisors (see below), whose sum is σ = 131059656. Its totient is φ = 58328424.

The previous prime is 87492859. The next prime is 87492887. The reversal of 87492879 is 97829478.

87492879 is a `hidden beast` number, since 87 + 492 + 8 + 79 = 666.

It is not a de Polignac number, because 87492879 - 2⁷ = 87492751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87492859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179784 + ... + 180269.

It is an arithmetic number, because the mean of its divisors is an integer number (10921638).

Almost surely, 2^87492879 is an apocalyptic number.

87492879 is a deficient number, since it is larger than the sum of its proper divisors (43566777).

87492879 is an equidigital number, since it uses as much as digits as its factorization.

87492879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360068 (or 360056 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 87492879 is about 9353.7628257295. The cubic root of 87492879 is about 443.9399571838.

It can be divided in two parts, 8749 and 2879, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 87492879 in words is "eighty-seven million, four hundred ninety-two thousand, eight hundred seventy-nine".