85774860 has 72 divisors (see below), whose sum is σ = 275498496. Its totient is φ = 21527040.

The previous prime is 85774847. The next prime is 85774867. The reversal of 85774860 is 6847758.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (85774867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10956 + ... + 17075.

It is an arithmetic number, because the mean of its divisors is an integer number (3826368).

Almost surely, 2^85774860 is an apocalyptic number.

It is an amenable number.

85774860 is an abundant number, since it is smaller than the sum of its proper divisors (189723636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85774860 is a wasteful number, since it uses less digits than its factorization.

85774860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28063 (or 28058 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 85774860 is about 9261.4718052802. The cubic root of 85774860 is about 441.0149778182.

The spelling of 85774860 in words is "eighty-five million, seven hundred seventy-four thousand, eight hundred sixty".