14802721 has 4 divisors (see below), whose sum is σ = 15005572. Its totient is φ = 14599872.

The previous prime is 14802679. The next prime is 14802727. The reversal of 14802721 is 12720841.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7485696 + 7317025 = 2736^2 + 2705^2 .

It is a cyclic number.

It is not a de Polignac number, because 14802721 - 2²¹ = 12705569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14802727) 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 3 ways as a sum of consecutive naturals, for example, 101316 + ... + 101461.

It is an arithmetic number, because the mean of its divisors is an integer number (3751393).

Almost surely, 2^14802721 is an apocalyptic number.

It is an amenable number.

14802721 is a deficient number, since it is larger than the sum of its proper divisors (202851).

14802721 is an equidigital number, since it uses as much as digits as its factorization.

14802721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202850.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 14802721 is about 3847.4304412166. The cubic root of 14802721 is about 245.5352507236.

The spelling of 14802721 in words is "fourteen million, eight hundred two thousand, seven hundred twenty-one".