14839721 has 12 divisors (see below), whose sum is σ = 16177932. Its totient is φ = 13605696.

The previous prime is 14839711. The next prime is 14839729. The reversal of 14839721 is 12793841.

It can be written as a sum of positive squares in 6 ways, for example, as 8265625 + 6574096 = 2875^2 + 2564^2 .

It is not a de Polignac number, because 14839721 - 2¹⁰ = 14838697 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14839729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46655 + ... + 46971.

It is an arithmetic number, because the mean of its divisors is an integer number (1348161).

Almost surely, 2^14839721 is an apocalyptic number.

It is an amenable number.

14839721 is a deficient number, since it is larger than the sum of its proper divisors (1338211).

14839721 is a wasteful number, since it uses less digits than its factorization.

14839721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 607 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 14839721 is about 3852.2358442858. The cubic root of 14839721 is about 245.7396556095.

The spelling of 14839721 in words is "fourteen million, eight hundred thirty-nine thousand, seven hundred twenty-one".