13430979 has 6 divisors (see below), whose sum is σ = 19400316. Its totient is φ = 8953980.

The previous prime is 13430959. The next prime is 13430981. The reversal of 13430979 is 97903431.

13430979 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13430979 - 2⁵ = 13430947 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13430939) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 746157 + ... + 746174.

It is an arithmetic number, because the mean of its divisors is an integer number (3233386).

Almost surely, 2^13430979 is an apocalyptic number.

13430979 is a deficient number, since it is larger than the sum of its proper divisors (5969337).

13430979 is a wasteful number, since it uses less digits than its factorization.

13430979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492337 (or 1492334 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13430979 is about 3664.8300097003. The cubic root of 13430979 is about 237.7036716412.

It can be divided in two parts, 134 and 30979, that added together give a palindrome (31113).

The spelling of 13430979 in words is "thirteen million, four hundred thirty thousand, nine hundred seventy-nine".