85521792 has 32 divisors (see below), whose sum is σ = 227168280. Its totient is φ = 28507136.

The previous prime is 85521773. The next prime is 85521853. The reversal of 85521792 is 29712558.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 85521792.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110973 + ... + 111740.

Almost surely, 2^85521792 is an apocalyptic number.

It is an amenable number.

85521792 is an abundant number, since it is smaller than the sum of its proper divisors (141646488).

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

85521792 is a wasteful number, since it uses less digits than its factorization.

85521792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222730 (or 222718 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 85521792 is about 9247.7993057808. The cubic root of 85521792 is about 440.5808307217.

The spelling of 85521792 in words is "eighty-five million, five hundred twenty-one thousand, seven hundred ninety-two".