14691999 has 16 divisors (see below), whose sum is σ = 22468608. Its totient is φ = 8365152.

The previous prime is 14691991. The next prime is 14692019. The reversal of 14691999 is 99919641.

It is not a de Polignac number, because 14691999 - 2³ = 14691991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14691991) 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 15 ways as a sum of consecutive naturals, for example, 5554 + ... + 7760.

It is an arithmetic number, because the mean of its divisors is an integer number (1404288).

Almost surely, 2^14691999 is an apocalyptic number.

14691999 is a deficient number, since it is larger than the sum of its proper divisors (7776609).

14691999 is a wasteful number, since it uses less digits than its factorization.

14691999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534.

The product of its digits is 157464, while the sum is 48.

The square root of 14691999 is about 3833.0143490470. The cubic root of 14691999 is about 244.9215297774.

The spelling of 14691999 in words is "fourteen million, six hundred ninety-one thousand, nine hundred ninety-nine".