13976213 has 4 divisors (see below), whose sum is σ = 14020620. Its totient is φ = 13931808.

The previous prime is 13976201. The next prime is 13976219. The reversal of 13976213 is 31267931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31267931 = 181 ⋅172751.

It can be written as a sum of positive squares in 2 ways, for example, as 3073009 + 10903204 = 1753^2 + 3302^2 .

It is a cyclic number.

It is not a de Polignac number, because 13976213 - 2¹⁸ = 13714069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13976213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13976219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21728 + ... + 22361.

It is an arithmetic number, because the mean of its divisors is an integer number (3505155).

Almost surely, 2^13976213 is an apocalyptic number.

It is an amenable number.

13976213 is a deficient number, since it is larger than the sum of its proper divisors (44407).

13976213 is an equidigital number, since it uses as much as digits as its factorization.

13976213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44406.

The product of its digits is 6804, while the sum is 32.

The square root of 13976213 is about 3738.4773638475. The cubic root of 13976213 is about 240.8776489080.

The spelling of 13976213 in words is "thirteen million, nine hundred seventy-six thousand, two hundred thirteen".