7422979 has 4 divisors (see below), whose sum is σ = 7527600. Its totient is φ = 7318360.

The previous prime is 7422959. The next prime is 7423007. The reversal of 7422979 is 9792247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7422979 - 2¹³ = 7414787 is a prime.

It is a Duffinian number.

7422979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7422949) 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, 52204 + ... + 52345.

It is an arithmetic number, because the mean of its divisors is an integer number (1881900).

Almost surely, 2^7422979 is an apocalyptic number.

7422979 is a deficient number, since it is larger than the sum of its proper divisors (104621).

7422979 is a wasteful number, since it uses less digits than its factorization.

7422979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104620.

The product of its digits is 63504, while the sum is 40.

The square root of 7422979 is about 2724.5144521547. The cubic root of 7422979 is about 195.0710151164.

It can be divided in two parts, 742 and 2979, that added together give a square (3721 = 61²).

The spelling of 7422979 in words is "seven million, four hundred twenty-two thousand, nine hundred seventy-nine".