14393721 has 8 divisors (see below), whose sum is σ = 19434880. Its totient is φ = 9474192.

The previous prime is 14393719. The next prime is 14393723. The reversal of 14393721 is 12739341.

It is an interprime number because it is at equal distance from previous prime (14393719) and next prime (14393723).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14393721 - 2¹ = 14393719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14393723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30130 + ... + 30603.

It is an arithmetic number, because the mean of its divisors is an integer number (2429360).

Almost surely, 2^14393721 is an apocalyptic number.

It is an amenable number.

14393721 is a deficient number, since it is larger than the sum of its proper divisors (5041159).

14393721 is an equidigital number, since it uses as much as digits as its factorization.

14393721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60815.

The product of its digits is 4536, while the sum is 30.

The square root of 14393721 is about 3793.9057711019. The cubic root of 14393721 is about 243.2527134354.

The spelling of 14393721 in words is "fourteen million, three hundred ninety-three thousand, seven hundred twenty-one".