14784721 has 12 divisors (see below), whose sum is σ = 17526132. Its totient is φ = 12431328.

The previous prime is 14784709. The next prime is 14784727. The reversal of 14784721 is 12748741.

It can be written as a sum of positive squares in 2 ways, for example, as 5934096 + 8850625 = 2436^2 + 2975^2 .

It is not a de Polignac number, because 14784721 - 2¹³ = 14776529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14784727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250 + ... + 5443.

It is an arithmetic number, because the mean of its divisors is an integer number (1460511).

Almost surely, 2^14784721 is an apocalyptic number.

It is an amenable number.

14784721 is a deficient number, since it is larger than the sum of its proper divisors (2741411).

14784721 is an equidigital number, since it uses as much as digits as its factorization.

14784721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5753 counting only the distinct ones).

The product of its digits is 12544, while the sum is 34.

The square root of 14784721 is about 3845.0905060870. The cubic root of 14784721 is about 245.4356873361.

The spelling of 14784721 in words is "fourteen million, seven hundred eighty-four thousand, seven hundred twenty-one".