13321966 has 16 divisors (see below), whose sum is σ = 23395680. Its totient is φ = 5569920.

The previous prime is 13321951. The next prime is 13321967. The reversal of 13321966 is 66912331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321967) 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, 11031 + ... + 12178.

It is an arithmetic number, because the mean of its divisors is an integer number (1462230).

Almost surely, 2^13321966 is an apocalyptic number.

13321966 is a deficient number, since it is larger than the sum of its proper divisors (10073714).

13321966 is a wasteful number, since it uses less digits than its factorization.

13321966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23259.

The product of its digits is 5832, while the sum is 31.

The square root of 13321966 is about 3649.9268485820. The cubic root of 13321966 is about 237.0588138202.

The spelling of 13321966 in words is "thirteen million, three hundred twenty-one thousand, nine hundred sixty-six".