14940721 has 4 divisors (see below), whose sum is σ = 15016000. Its totient is φ = 14865444.

The previous prime is 14940719. The next prime is 14940727. The reversal of 14940721 is 12704941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14940721 - 2¹ = 14940719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14940721.

It is not an unprimeable number, because it can be changed into a prime (14940727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37341 + ... + 37738.

It is an arithmetic number, because the mean of its divisors is an integer number (3754000).

Almost surely, 2^14940721 is an apocalyptic number.

It is an amenable number.

14940721 is a deficient number, since it is larger than the sum of its proper divisors (75279).

14940721 is an equidigital number, since it uses as much as digits as its factorization.

14940721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75278.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 14940721 is about 3865.3228843138. The cubic root of 14940721 is about 246.2959016703.

The spelling of 14940721 in words is "fourteen million, nine hundred forty thousand, seven hundred twenty-one".