13213846 has 4 divisors (see below), whose sum is σ = 19820772. Its totient is φ = 6606922.

The previous prime is 13213841. The next prime is 13213853. The reversal of 13213846 is 64831231.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×13213846² = 349211452223432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3303460 + ... + 3303463.

It is an arithmetic number, because the mean of its divisors is an integer number (4955193).

Almost surely, 2^13213846 is an apocalyptic number.

13213846 is a deficient number, since it is larger than the sum of its proper divisors (6606926).

13213846 is an equidigital number, since it uses as much as digits as its factorization.

13213846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606925.

The product of its digits is 3456, while the sum is 28.

The square root of 13213846 is about 3635.0854185287. The cubic root of 13213846 is about 236.4157542684.

The spelling of 13213846 in words is "thirteen million, two hundred thirteen thousand, eight hundred forty-six".