7944479 has 4 divisors (see below), whose sum is σ = 7950120. Its totient is φ = 7938840.

The previous prime is 7944473. The next prime is 7944481. The reversal of 7944479 is 9744497.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7944479 is a prime.

It is a super-2 number, since 2×7944479² = 126229493162882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277 + ... + 4185.

It is an arithmetic number, because the mean of its divisors is an integer number (1987530).

Almost surely, 2^7944479 is an apocalyptic number.

7944479 is a deficient number, since it is larger than the sum of its proper divisors (5641).

7944479 is a wasteful number, since it uses less digits than its factorization.

7944479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640.

The product of its digits is 254016, while the sum is 44.

The square root of 7944479 is about 2818.5952174798. The cubic root of 7944479 is about 199.5362505132.

The spelling of 7944479 in words is "seven million, nine hundred forty-four thousand, four hundred seventy-nine".