14691917 has 6 divisors (see below), whose sum is σ = 15359022. Its totient is φ = 14052632.

The previous prime is 14691881. The next prime is 14691931. The reversal of 14691917 is 71919641.

It can be written as a sum of positive squares in only one way, i.e., 13205956 + 1485961 = 3634^2 + 1219^2 .

It is not a de Polignac number, because 14691917 - 2¹⁸ = 14429773 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 (14691947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13358 + ... + 14415.

It is an arithmetic number, because the mean of its divisors is an integer number (2559837).

Almost surely, 2^14691917 is an apocalyptic number.

It is an amenable number.

14691917 is a deficient number, since it is larger than the sum of its proper divisors (667105).

14691917 is an equidigital number, since it uses as much as digits as its factorization.

14691917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27819 (or 27796 counting only the distinct ones).

The product of its digits is 13608, while the sum is 38.

The square root of 14691917 is about 3833.0036524898. The cubic root of 14691917 is about 244.9210741189.

The spelling of 14691917 in words is "fourteen million, six hundred ninety-one thousand, nine hundred seventeen".