13946813 has 4 divisors (see below), whose sum is σ = 14039328. Its totient is φ = 13854300.

The previous prime is 13946797. The next prime is 13946819. The reversal of 13946813 is 31864931.

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 13946813 - 2⁴ = 13946797 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 (13946819) 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, 46031 + ... + 46332.

It is an arithmetic number, because the mean of its divisors is an integer number (3509832).

Almost surely, 2^13946813 is an apocalyptic number.

It is an amenable number.

13946813 is a deficient number, since it is larger than the sum of its proper divisors (92515).

13946813 is an equidigital number, since it uses as much as digits as its factorization.

13946813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92514.

The product of its digits is 15552, while the sum is 35.

The square root of 13946813 is about 3734.5432116927. The cubic root of 13946813 is about 240.7086290076.

The spelling of 13946813 in words is "thirteen million, nine hundred forty-six thousand, eight hundred thirteen".