87873081 has 16 divisors (see below), whose sum is σ = 123531840. Its totient is φ = 55408320.

The previous prime is 87873073. The next prime is 87873083. The reversal of 87873081 is 18037878.

It is not a de Polignac number, because 87873081 - 2³ = 87873073 is a prime.

It is a super-2 number, since 2×87873081² = 15443356728865122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87873083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59751 + ... + 61203.

It is an arithmetic number, because the mean of its divisors is an integer number (7720740).

Almost surely, 2^87873081 is an apocalyptic number.

It is an amenable number.

87873081 is a deficient number, since it is larger than the sum of its proper divisors (35658759).

87873081 is a wasteful number, since it uses less digits than its factorization.

87873081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 87873081 is about 9374.0642733022. The cubic root of 87873081 is about 444.5820778577.

The spelling of 87873081 in words is "eighty-seven million, eight hundred seventy-three thousand, eighty-one".