13401863 has 2 divisors, whose sum is σ = 13401864. Its totient is φ = 13401862.

The previous prime is 13401841. The next prime is 13401907. The reversal of 13401863 is 36810431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13401863 - 2⁸ = 13401607 is a prime.

It is a Sophie Germain prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13401803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700931 + 6700932.

It is an arithmetic number, because the mean of its divisors is an integer number (6700932).

Almost surely, 2^13401863 is an apocalyptic number.

13401863 is a deficient number, since it is larger than the sum of its proper divisors (1).

13401863 is an equidigital number, since it uses as much as digits as its factorization.

13401863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13401863 is about 3660.8555011090. The cubic root of 13401863 is about 237.5317807887.

The spelling of 13401863 in words is "thirteen million, four hundred one thousand, eight hundred sixty-three".