85120944 has 40 divisors (see below), whose sum is σ = 221146560. Its totient is φ = 28212288.

The previous prime is 85120943. The next prime is 85120949. The reversal of 85120944 is 44902158.

It is a super-2 number, since 2×85120944² = 14491150214902272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85120943) by changing a digit.

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, 3639 + ... + 13545.

It is an arithmetic number, because the mean of its divisors is an integer number (5528664).

Almost surely, 2^85120944 is an apocalyptic number.

It is an amenable number.

85120944 is an abundant number, since it is smaller than the sum of its proper divisors (136025616).

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

85120944 is a wasteful number, since it uses less digits than its factorization.

85120944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10097 (or 10091 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 85120944 is about 9226.1012350830. The cubic root of 85120944 is about 439.8914057075.

The spelling of 85120944 in words is "eighty-five million, one hundred twenty thousand, nine hundred forty-four".