11667213 has 16 divisors (see below), whose sum is σ = 17337600. Its totient is φ = 7754400.

The previous prime is 11667211. The next prime is 11667221. The reversal of 11667213 is 31276611.

It is not a de Polignac number, because 11667213 - 2¹ = 11667211 is a prime.

It is a super-2 number, since 2×11667213² = 272247718374738, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11667211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15868 + ... + 16586.

It is an arithmetic number, because the mean of its divisors is an integer number (1083600).

Almost surely, 2^11667213 is an apocalyptic number.

It is an amenable number.

11667213 is a deficient number, since it is larger than the sum of its proper divisors (5670387).

11667213 is an equidigital number, since it uses as much as digits as its factorization.

11667213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1323 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 11667213 is about 3415.7302293946. The cubic root of 11667213 is about 226.8066107644.

The spelling of 11667213 in words is "eleven million, six hundred sixty-seven thousand, two hundred thirteen".