13694247 has 12 divisors (see below), whose sum is σ = 22606480. Its totient is φ = 7825248.

The previous prime is 13694243. The next prime is 13694273. The reversal of 13694247 is 74249631.

It is not a de Polignac number, because 13694247 - 2² = 13694243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13694243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108622 + ... + 108747.

Almost surely, 2^13694247 is an apocalyptic number.

13694247 is a deficient number, since it is larger than the sum of its proper divisors (8912233).

13694247 is a wasteful number, since it uses less digits than its factorization.

13694247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217382 (or 217379 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 13694247 is about 3700.5738744146. The cubic root of 13694247 is about 239.2467529687.

The spelling of 13694247 in words is "thirteen million, six hundred ninety-four thousand, two hundred forty-seven".