14379991 has 8 divisors (see below), whose sum is σ = 15043680. Its totient is φ = 13719552.

The previous prime is 14379983. The next prime is 14380007. The reversal of 14379991 is 19997341.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14379991 - 2³ = 14379983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14379091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15015 + ... + 15943.

It is an arithmetic number, because the mean of its divisors is an integer number (1880460).

Almost surely, 2^14379991 is an apocalyptic number.

14379991 is a deficient number, since it is larger than the sum of its proper divisors (663689).

14379991 is an equidigital number, since it uses as much as digits as its factorization.

14379991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

The product of its digits is 61236, while the sum is 43.

The square root of 14379991 is about 3792.0958584930. The cubic root of 14379991 is about 243.1753435353.

The spelling of 14379991 in words is "fourteen million, three hundred seventy-nine thousand, nine hundred ninety-one".