14646721 has 8 divisors (see below), whose sum is σ = 14867424. Its totient is φ = 14427840.

The previous prime is 14646719. The next prime is 14646743. The reversal of 14646721 is 12764641.

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

It is not a de Polignac number, because 14646721 - 2¹ = 14646719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14641721) 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, 25366 + ... + 25936.

It is an arithmetic number, because the mean of its divisors is an integer number (1858428).

Almost surely, 2^14646721 is an apocalyptic number.

It is an amenable number.

14646721 is a deficient number, since it is larger than the sum of its proper divisors (220703).

14646721 is a wasteful number, since it uses less digits than its factorization.

14646721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its digits is 8064, while the sum is 31.

The square root of 14646721 is about 3827.1034739082. The cubic root of 14646721 is about 244.6696700508.

The spelling of 14646721 in words is "fourteen million, six hundred forty-six thousand, seven hundred twenty-one".