14911979 has 4 divisors (see below), whose sum is σ = 15696840. Its totient is φ = 14127120.

The previous prime is 14911957. The next prime is 14911991. The reversal of 14911979 is 97911941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14911979 - 2¹⁶ = 14846443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14911909) 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, 392402 + ... + 392439.

It is an arithmetic number, because the mean of its divisors is an integer number (3924210).

Almost surely, 2^14911979 is an apocalyptic number.

14911979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14911979 is a deficient number, since it is larger than the sum of its proper divisors (784861).

14911979 is an equidigital number, since it uses as much as digits as its factorization.

14911979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784860.

The product of its digits is 20412, while the sum is 41.

The square root of 14911979 is about 3861.6031644901. The cubic root of 14911979 is about 246.1378642043.

It can be divided in two parts, 149 and 11979, that multiplied together give a palindrome (1784871).

The spelling of 14911979 in words is "fourteen million, nine hundred eleven thousand, nine hundred seventy-nine".