85619244 has 24 divisors (see below), whose sum is σ = 210293440. Its totient is φ = 27037584.

The previous prime is 85619243. The next prime is 85619249. The reversal of 85619244 is 44291658.

It is not an unprimeable number, because it can be changed into a prime (85619243) 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, 187534 + ... + 187989.

Almost surely, 2^85619244 is an apocalyptic number.

It is an amenable number.

85619244 is an abundant number, since it is smaller than the sum of its proper divisors (124674196).

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

85619244 is a wasteful number, since it uses less digits than its factorization.

85619244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375549 (or 375547 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 85619244 is about 9253.0667348723. The cubic root of 85619244 is about 440.7481143426.

It can be divided in two parts, 856 and 19244, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 85619244 in words is "eighty-five million, six hundred nineteen thousand, two hundred forty-four".