13924643 has 4 divisors (see below), whose sum is σ = 14220960. Its totient is φ = 13628328.

The previous prime is 13924639. The next prime is 13924657. The reversal of 13924643 is 34642931.

13924643 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13924643 - 2² = 13924639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13924613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148088 + ... + 148181.

It is an arithmetic number, because the mean of its divisors is an integer number (3555240).

Almost surely, 2^13924643 is an apocalyptic number.

13924643 is a deficient number, since it is larger than the sum of its proper divisors (296317).

13924643 is an equidigital number, since it uses as much as digits as its factorization.

13924643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296316.

The product of its digits is 15552, while the sum is 32.

The square root of 13924643 is about 3731.5737966708. The cubic root of 13924643 is about 240.5810170467.

The spelling of 13924643 in words is "thirteen million, nine hundred twenty-four thousand, six hundred forty-three".