13893647 has 2 divisors, whose sum is σ = 13893648. Its totient is φ = 13893646.

The previous prime is 13893643. The next prime is 13893667. The reversal of 13893647 is 74639831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13893647 - 2² = 13893643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13893643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6946823 + 6946824.

It is an arithmetic number, because the mean of its divisors is an integer number (6946824).

Almost surely, 2^13893647 is an apocalyptic number.

13893647 is a deficient number, since it is larger than the sum of its proper divisors (1).

13893647 is an equidigital number, since it uses as much as digits as its factorization.

13893647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 13893647 is about 3727.4182754287. The cubic root of 13893647 is about 240.4023747854.

The spelling of 13893647 in words is "thirteen million, eight hundred ninety-three thousand, six hundred forty-seven".