85512087 has 12 divisors (see below), whose sum is σ = 123923800. Its totient is φ = 56820528.

The previous prime is 85512073. The next prime is 85512107. The reversal of 85512087 is 78021558.

85512087 is a `hidden beast` number, since 8 + 551 + 20 + 87 = 666.

It is not a de Polignac number, because 85512087 - 2¹⁸ = 85249943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85512017) 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, 12712 + ... + 18237.

Almost surely, 2^85512087 is an apocalyptic number.

85512087 is a deficient number, since it is larger than the sum of its proper divisors (38411713).

85512087 is a wasteful number, since it uses less digits than its factorization.

85512087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31262 (or 31259 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 85512087 is about 9247.2745714616. The cubic root of 85512087 is about 440.5641644092.

The spelling of 85512087 in words is "eighty-five million, five hundred twelve thousand, eighty-seven".