13247894 has 24 divisors (see below), whose sum is σ = 22173912. Its totient is φ = 5886720.

The previous prime is 13247893. The next prime is 13247903. The reversal of 13247894 is 49874231.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247893) 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 11 ways as a sum of consecutive naturals, for example, 117182 + ... + 117294.

It is an arithmetic number, because the mean of its divisors is an integer number (923913).

Almost surely, 2^13247894 is an apocalyptic number.

13247894 is a deficient number, since it is larger than the sum of its proper divisors (8926018).

13247894 is a wasteful number, since it uses less digits than its factorization.

13247894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 199 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 13247894 is about 3639.7656517968. The cubic root of 13247894 is about 236.6186369064.

It can be divided in two parts, 13247 and 894, that added together give a palindrome (14141).

The spelling of 13247894 in words is "thirteen million, two hundred forty-seven thousand, eight hundred ninety-four".