7979427 has 12 divisors (see below), whose sum is σ = 11597040. Its totient is φ = 5286768.

The previous prime is 7979423. The next prime is 7979441. The reversal of 7979427 is 7249797.

It is a happy number.

7979427 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7979427 - 2² = 7979423 is a prime.

7979427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7979423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1152 + ... + 4157.

It is an arithmetic number, because the mean of its divisors is an integer number (966420).

Almost surely, 2^7979427 is an apocalyptic number.

7979427 is a deficient number, since it is larger than the sum of its proper divisors (3617613).

7979427 is a wasteful number, since it uses less digits than its factorization.

7979427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482 (or 5479 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 7979427 is about 2824.7879566438. The cubic root of 7979427 is about 199.8284111618.

The spelling of 7979427 in words is "seven million, nine hundred seventy-nine thousand, four hundred twenty-seven".