13394971 has 4 divisors (see below), whose sum is σ = 13422744. Its totient is φ = 13367200.

The previous prime is 13394939. The next prime is 13395001. The reversal of 13394971 is 17949331.

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

It is a cyclic number.

It is not a de Polignac number, because 13394971 - 2⁵ = 13394939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13394971.

It is not an unprimeable number, because it can be changed into a prime (13394921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13150 + ... + 14131.

It is an arithmetic number, because the mean of its divisors is an integer number (3355686).

Almost surely, 2^13394971 is an apocalyptic number.

13394971 is a deficient number, since it is larger than the sum of its proper divisors (27773).

13394971 is an equidigital number, since it uses as much as digits as its factorization.

13394971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27772.

The product of its digits is 20412, while the sum is 37.

The square root of 13394971 is about 3659.9140700295. The cubic root of 13394971 is about 237.4910563576.

It can be divided in two parts, 13394 and 971, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 13394971 in words is "thirteen million, three hundred ninety-four thousand, nine hundred seventy-one".