14957809 has 2 divisors, whose sum is σ = 14957810. Its totient is φ = 14957808.

The previous prime is 14957771. The next prime is 14957821. The reversal of 14957809 is 90875941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14630625 + 327184 = 3825^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 14957809 - 2⁷ = 14957681 is a prime.

It is not a weakly prime, because it can be changed into another prime (14957849) 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 as a sum of consecutive naturals, namely, 7478904 + 7478905.

It is an arithmetic number, because the mean of its divisors is an integer number (7478905).

Almost surely, 2^14957809 is an apocalyptic number.

It is an amenable number.

14957809 is a deficient number, since it is larger than the sum of its proper divisors (1).

14957809 is an equidigital number, since it uses as much as digits as its factorization.

14957809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 14957809 is about 3867.5326760093. The cubic root of 14957809 is about 246.3897637371.

The spelling of 14957809 in words is "fourteen million, nine hundred fifty-seven thousand, eight hundred nine".