7408979 has 4 divisors (see below), whose sum is σ = 7414584. Its totient is φ = 7403376.

The previous prime is 7408937. The next prime is 7408997. The reversal of 7408979 is 9798047.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9798047 = 7 ⋅1399721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7408979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7408909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404 + ... + 3870.

It is an arithmetic number, because the mean of its divisors is an integer number (1853646).

Almost surely, 2^7408979 is an apocalyptic number.

7408979 is a deficient number, since it is larger than the sum of its proper divisors (5605).

7408979 is a wasteful number, since it uses less digits than its factorization.

7408979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 7408979 is about 2721.9439744418. The cubic root of 7408979 is about 194.9483009999.

The spelling of 7408979 in words is "seven million, four hundred eight thousand, nine hundred seventy-nine".