14726921 has 4 divisors (see below), whose sum is σ = 16065744. Its totient is φ = 13388100.

The previous prime is 14726903. The next prime is 14726927. The reversal of 14726921 is 12962741.

It is a happy number.

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 not a de Polignac number, because 14726921 - 2¹⁸ = 14464777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14726927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669395 + ... + 669416.

It is an arithmetic number, because the mean of its divisors is an integer number (4016436).

Almost surely, 2^14726921 is an apocalyptic number.

14726921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14726921 is a deficient number, since it is larger than the sum of its proper divisors (1338823).

14726921 is a wasteful number, since it uses less digits than its factorization.

14726921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338822.

The product of its digits is 6048, while the sum is 32.

The square root of 14726921 is about 3837.5670678178. The cubic root of 14726921 is about 245.1154308212.

The spelling of 14726921 in words is "fourteen million, seven hundred twenty-six thousand, nine hundred twenty-one".