7409979 has 12 divisors (see below), whose sum is σ = 11168976. Its totient is φ = 4725072.

The previous prime is 7409947. The next prime is 7409989. The reversal of 7409979 is 9799047.

It is not a de Polignac number, because 7409979 - 2⁵ = 7409947 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7409989) 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 11 ways as a sum of consecutive naturals, for example, 17692 + ... + 18105.

It is an arithmetic number, because the mean of its divisors is an integer number (930748).

Almost surely, 2^7409979 is an apocalyptic number.

7409979 is a deficient number, since it is larger than the sum of its proper divisors (3758997).

7409979 is a wasteful number, since it uses less digits than its factorization.

7409979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35826 (or 35823 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 7409979 is about 2722.1276604891. The cubic root of 7409979 is about 194.9570714180.

The spelling of 7409979 in words is "seven million, four hundred nine thousand, nine hundred seventy-nine".