13436923 has 2 divisors, whose sum is σ = 13436924. Its totient is φ = 13436922.

The previous prime is 13436921. The next prime is 13436959. The reversal of 13436923 is 32963431.

It is a weak prime.

It is an emirp because it is prime and its reverse (32963431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13436923 - 2¹ = 13436921 is a prime.

Together with 13436921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13436921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6718461 + 6718462.

It is an arithmetic number, because the mean of its divisors is an integer number (6718462).

Almost surely, 2^13436923 is an apocalyptic number.

13436923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13436923 is an equidigital number, since it uses as much as digits as its factorization.

13436923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 31.

The square root of 13436923 is about 3665.6408716621. The cubic root of 13436923 is about 237.7387324322.

The spelling of 13436923 in words is "thirteen million, four hundred thirty-six thousand, nine hundred twenty-three".