14803921 has 4 divisors (see below), whose sum is σ = 16149744. Its totient is φ = 13458100.

The previous prime is 14803913. The next prime is 14803931. The reversal of 14803921 is 12930841.

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 a cyclic number.

It is not a de Polignac number, because 14803921 - 2³ = 14803913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14803921.

It is not an unprimeable number, because it can be changed into a prime (14803931) 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 3 ways as a sum of consecutive naturals, for example, 672895 + ... + 672916.

It is an arithmetic number, because the mean of its divisors is an integer number (4037436).

Almost surely, 2^14803921 is an apocalyptic number.

14803921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14803921 is a deficient number, since it is larger than the sum of its proper divisors (1345823).

14803921 is a wasteful number, since it uses less digits than its factorization.

14803921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345822.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 14803921 is about 3847.5863862947. The cubic root of 14803921 is about 245.5418854123.

Subtracting from 14803921 its reverse (12930841), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 14803921 in words is "fourteen million, eight hundred three thousand, nine hundred twenty-one".