14300721 has 12 divisors (see below), whose sum is σ = 20766148. Its totient is φ = 9483264.

The previous prime is 14300719. The next prime is 14300731. The reversal of 14300721 is 12700341.

14300721 is nontrivially palindromic in base 14.

14300721 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3111696 + 11189025 = 1764^2 + 3345^2 .

It is not a de Polignac number, because 14300721 - 2¹ = 14300719 is a prime.

It is a super-2 number, since 2×14300721² = 409021242239682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14300694 and 14300703.

It is not an unprimeable number, because it can be changed into a prime (14300731) 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, 2380 + ... + 5853.

Almost surely, 2^14300721 is an apocalyptic number.

It is an amenable number.

14300721 is a deficient number, since it is larger than the sum of its proper divisors (6465427).

14300721 is a wasteful number, since it uses less digits than its factorization.

14300721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8432 (or 8429 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 14300721 is about 3781.6294107170. The cubic root of 14300721 is about 242.7276835639.

The spelling of 14300721 in words is "fourteen million, three hundred thousand, seven hundred twenty-one".