13739923 has 2 divisors, whose sum is σ = 13739924. Its totient is φ = 13739922.

The previous prime is 13739897. The next prime is 13739941. The reversal of 13739923 is 32993731.

It is a strong prime.

It is an emirp because it is prime and its reverse (32993731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13739923 - 2¹⁷ = 13608851 is a prime.

It is not a weakly prime, because it can be changed into another prime (13739963) 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 as a sum of consecutive naturals, namely, 6869961 + 6869962.

It is an arithmetic number, because the mean of its divisors is an integer number (6869962).

Almost surely, 2^13739923 is an apocalyptic number.

13739923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13739923 is an equidigital number, since it uses as much as digits as its factorization.

13739923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 37.

The square root of 13739923 is about 3706.7402121001. The cubic root of 13739923 is about 239.5124535346.

It can be divided in two parts, 13 and 739923, that added together give a triangular number (739936 = T₁₂₁₆).

The spelling of 13739923 in words is "thirteen million, seven hundred thirty-nine thousand, nine hundred twenty-three".