85113644 has 24 divisors (see below), whose sum is σ = 185703168. Its totient is φ = 33161040.

The previous prime is 85113629. The next prime is 85113647. The reversal of 85113644 is 44631158.

It is a self number, because there is not a number n which added to its sum of digits gives 85113644.

It is not an unprimeable number, because it can be changed into a prime (85113647) 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, 137864 + ... + 138479.

It is an arithmetic number, because the mean of its divisors is an integer number (7737632).

Almost surely, 2^85113644 is an apocalyptic number.

It is an amenable number.

85113644 is an abundant number, since it is smaller than the sum of its proper divisors (100589524).

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

85113644 is a wasteful number, since it uses less digits than its factorization.

85113644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276365 (or 276363 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 85113644 is about 9225.7056098707. The cubic root of 85113644 is about 439.8788302710.

The spelling of 85113644 in words is "eighty-five million, one hundred thirteen thousand, six hundred forty-four".