82397844 has 48 divisors (see below), whose sum is σ = 226195200. Its totient is φ = 25849728.

The previous prime is 82397797. The next prime is 82397863. The reversal of 82397844 is 44879328.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 82397844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20604 + ... + 24275.

It is an arithmetic number, because the mean of its divisors is an integer number (4712400).

Almost surely, 2^82397844 is an apocalyptic number.

It is an amenable number.

82397844 is an abundant number, since it is smaller than the sum of its proper divisors (143797356).

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

82397844 is a wasteful number, since it uses less digits than its factorization.

82397844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44909 (or 44901 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 82397844 is about 9077.3258176624. The cubic root of 82397844 is about 435.1496274802.

The spelling of 82397844 in words is "eighty-two million, three hundred ninety-seven thousand, eight hundred forty-four".