85199444 has 24 divisors (see below), whose sum is σ = 172222848. Its totient is φ = 36448640.

The previous prime is 85199441. The next prime is 85199447. The reversal of 85199444 is 44499158.

It is an interprime number because it is at equal distance from previous prime (85199441) and next prime (85199447).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 85199395 and 85199404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85199441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56204 + ... + 57699.

It is an arithmetic number, because the mean of its divisors is an integer number (7175952).

Almost surely, 2^85199444 is an apocalyptic number.

It is an amenable number.

85199444 is an abundant number, since it is smaller than the sum of its proper divisors (87023404).

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

85199444 is a wasteful number, since it uses less digits than its factorization.

85199444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113935 (or 113933 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 85199444 is about 9230.3544894007. The cubic root of 85199444 is about 440.0265893023.

The spelling of 85199444 in words is "eighty-five million, one hundred ninety-nine thousand, four hundred forty-four".