13022979 has 4 divisors (see below), whose sum is σ = 17363976. Its totient is φ = 8681984.

The previous prime is 13022963. The next prime is 13023013. The reversal of 13022979 is 97922031.

13022979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97922031 = 3 ⋅32640677.

It is a cyclic number.

It is not a de Polignac number, because 13022979 - 2⁴ = 13022963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13022909) 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, 2170494 + ... + 2170499.

It is an arithmetic number, because the mean of its divisors is an integer number (4340994).

Almost surely, 2^13022979 is an apocalyptic number.

13022979 is a deficient number, since it is larger than the sum of its proper divisors (4340997).

13022979 is an equidigital number, since it uses as much as digits as its factorization.

13022979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340996.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 13022979 is about 3608.7364824825. The cubic root of 13022979 is about 235.2719290682.

The spelling of 13022979 in words is "thirteen million, twenty-two thousand, nine hundred seventy-nine".