14979691 has 4 divisors (see below), whose sum is σ = 15036912. Its totient is φ = 14922472.

The previous prime is 14979677. The next prime is 14979721. The reversal of 14979691 is 19697941.

14979691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14979691 - 2⁷ = 14979563 is a prime.

It is a super-2 number, since 2×14979691² = 448782284910962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14979611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28216 + ... + 28741.

It is an arithmetic number, because the mean of its divisors is an integer number (3759228).

Almost surely, 2^14979691 is an apocalyptic number.

14979691 is a deficient number, since it is larger than the sum of its proper divisors (57221).

14979691 is an equidigital number, since it uses as much as digits as its factorization.

14979691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57220.

The product of its digits is 122472, while the sum is 46.

The square root of 14979691 is about 3870.3605775173. The cubic root of 14979691 is about 246.5098542718.

The spelling of 14979691 in words is "fourteen million, nine hundred seventy-nine thousand, six hundred ninety-one".