85612044 has 48 divisors (see below), whose sum is σ = 230582016. Its totient is φ = 24216000.

The previous prime is 85612039. The next prime is 85612057. The reversal of 85612044 is 44021658.

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 15 ways as a sum of consecutive naturals, for example, 3439 + ... + 13529.

It is an arithmetic number, because the mean of its divisors is an integer number (4803792).

Almost surely, 2^85612044 is an apocalyptic number.

85612044 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85612044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115291008).

85612044 is an abundant number, since it is smaller than the sum of its proper divisors (144969972).

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

85612044 is a wasteful number, since it uses less digits than its factorization.

85612044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10206 (or 10204 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 85612044 is about 9252.6776664920. The cubic root of 85612044 is about 440.7357593500.

The spelling of 85612044 in words is "eighty-five million, six hundred twelve thousand, forty-four".