85845988 has 12 divisors (see below), whose sum is σ = 159067692. Its totient is φ = 40398080.

The previous prime is 85845979. The next prime is 85845989. The reversal of 85845988 is 88954858.

It can be written as a sum of positive squares in 2 ways, for example, as 69588964 + 16257024 = 8342^2 + 4032^2 .

It is a super-2 number, since 2×85845988² = 14739067311392288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85845989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631153 + ... + 631288.

It is an arithmetic number, because the mean of its divisors is an integer number (13255641).

Almost surely, 2^85845988 is an apocalyptic number.

It is an amenable number.

85845988 is a deficient number, since it is larger than the sum of its proper divisors (73221704).

85845988 is a wasteful number, since it uses less digits than its factorization.

85845988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262462 (or 1262460 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 55.

The square root of 85845988 is about 9265.3110039545. The cubic root of 85845988 is about 441.1368466527.

The spelling of 85845988 in words is "eighty-five million, eight hundred forty-five thousand, nine hundred eighty-eight".