13423903 has 2 divisors, whose sum is σ = 13423904. Its totient is φ = 13423902.

The previous prime is 13423901. The next prime is 13423909. The reversal of 13423903 is 30932431.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30932431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13423903 - 2¹ = 13423901 is a prime.

Together with 13423901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13423901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6711951 + 6711952.

It is an arithmetic number, because the mean of its divisors is an integer number (6711952).

Almost surely, 2^13423903 is an apocalyptic number.

13423903 is a deficient number, since it is larger than the sum of its proper divisors (1).

13423903 is an equidigital number, since it uses as much as digits as its factorization.

13423903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 13423903 is about 3663.8644898522. The cubic root of 13423903 is about 237.6619202382.

The spelling of 13423903 in words is "thirteen million, four hundred twenty-three thousand, nine hundred three".