13921792 has 20 divisors (see below), whose sum is σ = 27817416. Its totient is φ = 6960640.

The previous prime is 13921783. The next prime is 13921801. The reversal of 13921792 is 29712931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13921783) and next prime (13921801).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13084 + ... + 14107.

Almost surely, 2^13921792 is an apocalyptic number.

It is an amenable number.

13921792 is a deficient number, since it is larger than the sum of its proper divisors (13895624).

13921792 is an frugal number, since it uses more digits than its factorization.

13921792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27209 (or 27193 counting only the distinct ones).

The product of its digits is 6804, while the sum is 34.

The square root of 13921792 is about 3731.1917667148. The cubic root of 13921792 is about 240.5645966785.

The spelling of 13921792 in words is "thirteen million, nine hundred twenty-one thousand, seven hundred ninety-two".