14640979 has 2 divisors, whose sum is σ = 14640980. Its totient is φ = 14640978.

The previous prime is 14640931. The next prime is 14641031. The reversal of 14640979 is 97904641.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14640979 - 2⁷ = 14640851 is a prime.

It is equal to p₉₄₈₉₈₂ and since 14640979 and 948982 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (14640929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7320489 + 7320490.

It is an arithmetic number, because the mean of its divisors is an integer number (7320490).

Almost surely, 2^14640979 is an apocalyptic number.

14640979 is a deficient number, since it is larger than the sum of its proper divisors (1).

14640979 is an equidigital number, since it uses as much as digits as its factorization.

14640979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 14640979 is about 3826.3532246775. The cubic root of 14640979 is about 244.6376929989.

The spelling of 14640979 in words is "fourteen million, six hundred forty thousand, nine hundred seventy-nine".