72844 has 6 divisors (see below), whose sum is σ = 127484. Its totient is φ = 36420.

The previous prime is 72823. The next prime is 72859. The reversal of 72844 is 44827.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9102 + ... + 9109.

2⁷²⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

72844 is a deficient number, since it is larger than the sum of its proper divisors (54640).

72844 is a wasteful number, since it uses less digits than its factorization.

72844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18215 (or 18213 counting only the distinct ones).

The product of its digits is 1792, while the sum is 25.

The square root of 72844 is about 269.8962763730. The cubic root of 72844 is about 41.7636000967.

The spelling of 72844 in words is "seventy-two thousand, eight hundred forty-four".