87051879 has 24 divisors (see below), whose sum is σ = 128044800. Its totient is φ = 56981760.

The previous prime is 87051857. The next prime is 87051931. The reversal of 87051879 is 97815078.

It is not a de Polignac number, because 87051879 - 2⁵ = 87051847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87051079) 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 23 ways as a sum of consecutive naturals, for example, 152707 + ... + 153275.

It is an arithmetic number, because the mean of its divisors is an integer number (5335200).

Almost surely, 2^87051879 is an apocalyptic number.

87051879 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

87051879 is a deficient number, since it is larger than the sum of its proper divisors (40992921).

87051879 is a wasteful number, since it uses less digits than its factorization.

87051879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 87051879 is about 9330.1596449364. The cubic root of 87051879 is about 443.1928206528.

The spelling of 87051879 in words is "eighty-seven million, fifty-one thousand, eight hundred seventy-nine".