14091979 has 4 divisors (see below), whose sum is σ = 15373080. Its totient is φ = 12810880.

The previous prime is 14091967. The next prime is 14091983. The reversal of 14091979 is 97919041.

It is a happy number.

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 14091979 - 2¹¹ = 14089931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14091919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640534 + ... + 640555.

It is an arithmetic number, because the mean of its divisors is an integer number (3843270).

Almost surely, 2^14091979 is an apocalyptic number.

14091979 is a deficient number, since it is larger than the sum of its proper divisors (1281101).

14091979 is a wasteful number, since it uses less digits than its factorization.

14091979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281100.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 14091979 is about 3753.9284756106. The cubic root of 14091979 is about 241.5408901324.

The spelling of 14091979 in words is "fourteen million, ninety-one thousand, nine hundred seventy-nine".