85912884 has 18 divisors (see below), whose sum is σ = 217168770. Its totient is φ = 28637616.

The previous prime is 85912861. The next prime is 85912907. The reversal of 85912884 is 48821958.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85912861) and next prime (85912907).

It can be written as a sum of positive squares in only one way, i.e., 85155984 + 756900 = 9228^2 + 870^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1193199 + ... + 1193270.

Almost surely, 2^85912884 is an apocalyptic number.

It is an amenable number.

85912884 is an abundant number, since it is smaller than the sum of its proper divisors (131255886).

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

85912884 is a wasteful number, since it uses less digits than its factorization.

85912884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386479 (or 2386474 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 85912884 is about 9268.9203254748. The cubic root of 85912884 is about 441.2514030777.

The spelling of 85912884 in words is "eighty-five million, nine hundred twelve thousand, eight hundred eighty-four".