7979445 has 16 divisors (see below), whose sum is σ = 14185920. Its totient is φ = 4255632.

The previous prime is 7979441. The next prime is 7979453. The reversal of 7979445 is 5449797.

It is not a de Polignac number, because 7979445 - 2² = 7979441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 7979445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7979441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29419 + ... + 29688.

It is an arithmetic number, because the mean of its divisors is an integer number (886620).

Almost surely, 2^7979445 is an apocalyptic number.

It is an amenable number.

7979445 is a deficient number, since it is larger than the sum of its proper divisors (6206475).

7979445 is a wasteful number, since it uses less digits than its factorization.

7979445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59121 (or 59115 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 7979445 is about 2824.7911427219. The cubic root of 7979445 is about 199.8285614194.

It can be divided in two parts, 79 and 79445, that added together give a square (79524 = 282²).

The spelling of 7979445 in words is "seven million, nine hundred seventy-nine thousand, four hundred forty-five".