85799994 has 16 divisors (see below), whose sum is σ = 196114368. Its totient is φ = 24514272.

The previous prime is 85799981. The next prime is 85800017. The reversal of 85799994 is 49999758.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021387 + ... + 1021470.

It is an arithmetic number, because the mean of its divisors is an integer number (12257148).

Almost surely, 2^85799994 is an apocalyptic number.

85799994 is an abundant number, since it is smaller than the sum of its proper divisors (110314374).

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

85799994 is a wasteful number, since it uses less digits than its factorization.

85799994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042869.

The product of its digits is 7348320, while the sum is 60.

The square root of 85799994 is about 9262.8286176524. The cubic root of 85799994 is about 441.0580494438.

The spelling of 85799994 in words is "eighty-five million, seven hundred ninety-nine thousand, nine hundred ninety-four".