7798944 has 24 divisors (see below), whose sum is σ = 20472480. Its totient is φ = 2599616.

The previous prime is 7798939. The next prime is 7798951. The reversal of 7798944 is 4498977.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 7798893 and 7798902.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40524 + ... + 40715.

It is an arithmetic number, because the mean of its divisors is an integer number (853020).

Almost surely, 2^7798944 is an apocalyptic number.

It is an amenable number.

7798944 is an abundant number, since it is smaller than the sum of its proper divisors (12673536).

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

7798944 is a wasteful number, since it uses less digits than its factorization.

7798944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81252 (or 81244 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 7798944 is about 2792.6589480278. The cubic root of 7798944 is about 198.3102980724.

The spelling of 7798944 in words is "seven million, seven hundred ninety-eight thousand, nine hundred forty-four".