4891944 has 32 divisors (see below), whose sum is σ = 12287520. Its totient is φ = 1622976.

The previous prime is 4891927. The next prime is 4891961. The reversal of 4891944 is 4491984.

It is an interprime number because it is at equal distance from previous prime (4891927) and next prime (4891961).

It is a super-2 number, since 2×4891944² = 47862232198272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7287 + ... + 7929.

It is an arithmetic number, because the mean of its divisors is an integer number (383985).

Almost surely, 2^4891944 is an apocalyptic number.

It is an amenable number.

4891944 is an abundant number, since it is smaller than the sum of its proper divisors (7395576).

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

4891944 is a wasteful number, since it uses less digits than its factorization.

4891944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 965 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 4891944 is about 2211.7739486665. The cubic root of 4891944 is about 169.7567917851.

The spelling of 4891944 in words is "four million, eight hundred ninety-one thousand, nine hundred forty-four".