13291966 has 4 divisors (see below), whose sum is σ = 19937952. Its totient is φ = 6645982.

The previous prime is 13291939. The next prime is 13292009. The reversal of 13291966 is 66919231.

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, 3322990 + ... + 3322993.

It is an arithmetic number, because the mean of its divisors is an integer number (4984488).

Almost surely, 2^13291966 is an apocalyptic number.

13291966 is a deficient number, since it is larger than the sum of its proper divisors (6645986).

13291966 is an equidigital number, since it uses as much as digits as its factorization.

13291966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645985.

The product of its digits is 17496, while the sum is 37.

The square root of 13291966 is about 3645.8148609056. The cubic root of 13291966 is about 236.8807342615.

The spelling of 13291966 in words is "thirteen million, two hundred ninety-one thousand, nine hundred sixty-six".