13766213 has 8 divisors (see below), whose sum is σ = 14860800. Its totient is φ = 12713008.

The previous prime is 13766197. The next prime is 13766227. The reversal of 13766213 is 31266731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13766213 - 2⁴ = 13766197 is a prime.

It is a super-2 number, since 2×13766213² = 379017240722738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13766713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9653 + ... + 10986.

It is an arithmetic number, because the mean of its divisors is an integer number (1857600).

Almost surely, 2^13766213 is an apocalyptic number.

It is an amenable number.

13766213 is a deficient number, since it is larger than the sum of its proper divisors (1094587).

13766213 is a wasteful number, since it uses less digits than its factorization.

13766213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20691.

The product of its digits is 4536, while the sum is 29.

The square root of 13766213 is about 3710.2847599612. The cubic root of 13766213 is about 239.6651174317.

The spelling of 13766213 in words is "thirteen million, seven hundred sixty-six thousand, two hundred thirteen".