85870885 has 16 divisors (see below), whose sum is σ = 108201600. Its totient is φ = 65330496.

The previous prime is 85870877. The next prime is 85870903. The reversal of 85870885 is 58807858.

It is a cyclic number.

It is not a de Polignac number, because 85870885 - 2³ = 85870877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5296 + ... + 14134.

It is an arithmetic number, because the mean of its divisors is an integer number (6762600).

Almost surely, 2^85870885 is an apocalyptic number.

It is an amenable number.

85870885 is a deficient number, since it is larger than the sum of its proper divisors (22330715).

85870885 is a wasteful number, since it uses less digits than its factorization.

85870885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8940.

The product of its (nonzero) digits is 716800, while the sum is 49.

The square root of 85870885 is about 9266.6544664188. The cubic root of 85870885 is about 441.1794886085.

The spelling of 85870885 in words is "eighty-five million, eight hundred seventy thousand, eight hundred eighty-five".