14997621 has 16 divisors (see below), whose sum is σ = 21254400. Its totient is φ = 9374208.

The previous prime is 14997613. The next prime is 14997641. The reversal of 14997621 is 12679941.

It is not a de Polignac number, because 14997621 - 2³ = 14997613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14997621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14997601) 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 15 ways as a sum of consecutive naturals, for example, 20500 + ... + 21218.

It is an arithmetic number, because the mean of its divisors is an integer number (1328400).

Almost surely, 2^14997621 is an apocalyptic number.

It is an amenable number.

14997621 is a deficient number, since it is larger than the sum of its proper divisors (6256779).

14997621 is a wasteful number, since it uses less digits than its factorization.

14997621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148.

The product of its digits is 27216, while the sum is 39.

The square root of 14997621 is about 3872.6762064495. The cubic root of 14997621 is about 246.6081687025.

The spelling of 14997621 in words is "fourteen million, nine hundred ninety-seven thousand, six hundred twenty-one".