85687485 has 32 divisors (see below), whose sum is σ = 150450048. Its totient is φ = 41383680.

The previous prime is 85687471. The next prime is 85687487. The reversal of 85687485 is 58478658.

It is not a de Polignac number, because 85687485 - 2⁸ = 85687229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85687487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6190 + ... + 14480.

It is an arithmetic number, because the mean of its divisors is an integer number (4701564).

Almost surely, 2^85687485 is an apocalyptic number.

It is an amenable number.

85687485 is a deficient number, since it is larger than the sum of its proper divisors (64762563).

85687485 is a wasteful number, since it uses less digits than its factorization.

85687485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365.

The product of its digits is 2150400, while the sum is 51.

The square root of 85687485 is about 9256.7534805676. The cubic root of 85687485 is about 440.8651795546.

The spelling of 85687485 in words is "eighty-five million, six hundred eighty-seven thousand, four hundred eighty-five".