844490923 has 24 divisors (see below), whose sum is σ = 900795168. Its totient is φ = 791271936.

The previous prime is 844490917. The next prime is 844490951. The reversal of 844490923 is 329094448.

It is not a de Polignac number, because 844490923 - 2¹⁷ = 844359851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 844490923.

It is not an unprimeable number, because it can be changed into a prime (844490323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7473315 + ... + 7473427.

It is an arithmetic number, because the mean of its divisors is an integer number (37533132).

Almost surely, 2^844490923 is an apocalyptic number.

844490923 is a deficient number, since it is larger than the sum of its proper divisors (56304245).

844490923 is a wasteful number, since it uses less digits than its factorization.

844490923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 844490923 is about 29060.1259976622. The cubic root of 844490923 is about 945.2173004199.

The spelling of 844490923 in words is "eight hundred forty-four million, four hundred ninety thousand, nine hundred twenty-three".