13758979 has 4 divisors (see below), whose sum is σ = 14817376. Its totient is φ = 12700584.

The previous prime is 13758973. The next prime is 13759003. The reversal of 13758979 is 97985731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97985731 = 37 ⋅2648263.

It is not a de Polignac number, because 13758979 - 2¹³ = 13750787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13758973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529179 + ... + 529204.

It is an arithmetic number, because the mean of its divisors is an integer number (3704344).

Almost surely, 2^13758979 is an apocalyptic number.

13758979 is a deficient number, since it is larger than the sum of its proper divisors (1058397).

13758979 is a wasteful number, since it uses less digits than its factorization.

13758979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058396.

The product of its digits is 476280, while the sum is 49.

The square root of 13758979 is about 3709.3097740685. The cubic root of 13758979 is about 239.6231295774.

The spelling of 13758979 in words is "thirteen million, seven hundred fifty-eight thousand, nine hundred seventy-nine".