14828721 has 16 divisors (see below), whose sum is σ = 21719040. Its totient is φ = 8957520.

The previous prime is 14828713. The next prime is 14828741. The reversal of 14828721 is 12782841.

It is a happy number.

It is not a de Polignac number, because 14828721 - 2³ = 14828713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14828701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4345 + ... + 6966.

It is an arithmetic number, because the mean of its divisors is an integer number (1357440).

Almost surely, 2^14828721 is an apocalyptic number.

It is an amenable number.

14828721 is a deficient number, since it is larger than the sum of its proper divisors (6890319).

14828721 is a wasteful number, since it uses less digits than its factorization.

14828721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11356.

The product of its digits is 7168, while the sum is 33.

The square root of 14828721 is about 3850.8078373245. The cubic root of 14828721 is about 245.6789221139.

The spelling of 14828721 in words is "fourteen million, eight hundred twenty-eight thousand, seven hundred twenty-one".