13924213 has 6 divisors (see below), whose sum is σ = 14194754. Its totient is φ = 13658736.

The previous prime is 13924201. The next prime is 13924219. The reversal of 13924213 is 31242931.

It can be written as a sum of positive squares in 3 ways, for example, as 7360369 + 6563844 = 2713^2 + 2562^2 .

It is not a de Polignac number, because 13924213 - 2⁵ = 13924181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13924219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331 + ... + 5287.

Almost surely, 2^13924213 is an apocalyptic number.

It is an amenable number.

13924213 is a deficient number, since it is larger than the sum of its proper divisors (270541).

13924213 is an frugal number, since it uses more digits than its factorization.

13924213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063 (or 5010 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 13924213 is about 3731.5161797854. The cubic root of 13924213 is about 240.5785406002.

The spelling of 13924213 in words is "thirteen million, nine hundred twenty-four thousand, two hundred thirteen".