85145790 has 32 divisors (see below), whose sum is σ = 204594336. Its totient is φ = 22678400.

The previous prime is 85145789. The next prime is 85145803. The reversal of 85145790 is 9754158.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43840 + ... + 45740.

It is an arithmetic number, because the mean of its divisors is an integer number (6393573).

Almost surely, 2^85145790 is an apocalyptic number.

85145790 is an abundant number, since it is smaller than the sum of its proper divisors (119448546).

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

85145790 is a wasteful number, since it uses less digits than its factorization.

85145790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404.

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

The square root of 85145790 is about 9227.4476427667. The cubic root of 85145790 is about 439.9342015934.

The spelling of 85145790 in words is "eighty-five million, one hundred forty-five thousand, seven hundred ninety".