14721663 has 8 divisors (see below), whose sum is σ = 21413376. Its totient is φ = 8922200.

The previous prime is 14721661. The next prime is 14721689. The reversal of 14721663 is 36612741.

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

It is a cyclic number.

It is not a de Polignac number, because 14721663 - 2¹ = 14721661 is a prime.

It is a super-2 number, since 2×14721663² = 433454722971138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14721663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14721661) 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 7 ways as a sum of consecutive naturals, for example, 223023 + ... + 223088.

It is an arithmetic number, because the mean of its divisors is an integer number (2676672).

Almost surely, 2^14721663 is an apocalyptic number.

14721663 is a deficient number, since it is larger than the sum of its proper divisors (6691713).

14721663 is a wasteful number, since it uses less digits than its factorization.

14721663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446125.

The product of its digits is 6048, while the sum is 30.

The square root of 14721663 is about 3836.8819371985. The cubic root of 14721663 is about 245.0862558984.

The spelling of 14721663 in words is "fourteen million, seven hundred twenty-one thousand, six hundred sixty-three".