87068511 has 12 divisors (see below), whose sum is σ = 129165192. Its totient is φ = 56476656.

The previous prime is 87068503. The next prime is 87068519. The reversal of 87068511 is 11586078.

87068511 is a `hidden beast` number, since 87 + 0 + 68 + 511 = 666.

It is an interprime number because it is at equal distance from previous prime (87068503) and next prime (87068519).

It is not a de Polignac number, because 87068511 - 2³ = 87068503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87068519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130401 + ... + 131066.

It is an arithmetic number, because the mean of its divisors is an integer number (10763766).

Almost surely, 2^87068511 is an apocalyptic number.

87068511 is a deficient number, since it is larger than the sum of its proper divisors (42096681).

87068511 is a wasteful number, since it uses less digits than its factorization.

87068511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261510 (or 261507 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 87068511 is about 9331.0509054447. The cubic root of 87068511 is about 443.2210441049.

The spelling of 87068511 in words is "eighty-seven million, sixty-eight thousand, five hundred eleven".