14772921 has 16 divisors (see below), whose sum is σ = 20213760. Its totient is φ = 9594000.

The previous prime is 14772917. The next prime is 14772929. The reversal of 14772921 is 12927741.

It is not a de Polignac number, because 14772921 - 2² = 14772917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14772929) 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, 19296 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (1263360).

Almost surely, 2^14772921 is an apocalyptic number.

It is an amenable number.

14772921 is a deficient number, since it is larger than the sum of its proper divisors (5440839).

14772921 is an equidigital number, since it uses as much as digits as its factorization.

14772921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916.

The product of its digits is 7056, while the sum is 33.

The square root of 14772921 is about 3843.5557755807. Note that the first 3 decimals coincide. The cubic root of 14772921 is about 245.3703741446.

The spelling of 14772921 in words is "fourteen million, seven hundred seventy-two thousand, nine hundred twenty-one".