85787994 has 16 divisors (see below), whose sum is σ = 173927232. Its totient is φ = 28204128.

The previous prime is 85787987. The next prime is 85788007. The reversal of 85787994 is 49978758.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97494 + ... + 98369.

It is an arithmetic number, because the mean of its divisors is an integer number (10870452).

Almost surely, 2^85787994 is an apocalyptic number.

85787994 is an abundant number, since it is smaller than the sum of its proper divisors (88139238).

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

85787994 is a wasteful number, since it uses less digits than its factorization.

85787994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195941.

The product of its digits is 5080320, while the sum is 57.

The square root of 85787994 is about 9262.1808447039. The cubic root of 85787994 is about 441.0374863369.

The spelling of 85787994 in words is "eighty-five million, seven hundred eighty-seven thousand, nine hundred ninety-four".