85772808 has 96 divisors (see below), whose sum is σ = 260357760. Its totient is φ = 25280640.

The previous prime is 85772789. The next prime is 85772839. The reversal of 85772808 is 80827758.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27841 + ... + 30767.

It is an arithmetic number, because the mean of its divisors is an integer number (2712060).

Almost surely, 2^85772808 is an apocalyptic number.

85772808 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85772808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130178880).

85772808 is an abundant number, since it is smaller than the sum of its proper divisors (174584952).

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

85772808 is a wasteful number, since it uses less digits than its factorization.

85772808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987 (or 2980 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 85772808 is about 9261.3610230894. The cubic root of 85772808 is about 441.0114609760.

The spelling of 85772808 in words is "eighty-five million, seven hundred seventy-two thousand, eight hundred eight".