13289966 has 4 divisors (see below), whose sum is σ = 19934952. Its totient is φ = 6644982.

The previous prime is 13289957. The next prime is 13289977. The reversal of 13289966 is 66998231.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3322490 + ... + 3322493.

It is an arithmetic number, because the mean of its divisors is an integer number (4983738).

Almost surely, 2^13289966 is an apocalyptic number.

13289966 is a deficient number, since it is larger than the sum of its proper divisors (6644986).

13289966 is an equidigital number, since it uses as much as digits as its factorization.

13289966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6644985.

The product of its digits is 139968, while the sum is 44.

The square root of 13289966 is about 3645.5405634830. The cubic root of 13289966 is about 236.8688527678.

The spelling of 13289966 in words is "thirteen million, two hundred eighty-nine thousand, nine hundred sixty-six".