13649723 has 2 divisors, whose sum is σ = 13649724. Its totient is φ = 13649722.

The previous prime is 13649719. The next prime is 13649747. The reversal of 13649723 is 32794631.

13649723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13649723 - 2² = 13649719 is a prime.

It is not a weakly prime, because it can be changed into another prime (13649773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6824861 + 6824862.

It is an arithmetic number, because the mean of its divisors is an integer number (6824862).

Almost surely, 2^13649723 is an apocalyptic number.

13649723 is a deficient number, since it is larger than the sum of its proper divisors (1).

13649723 is an equidigital number, since it uses as much as digits as its factorization.

13649723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 13649723 is about 3694.5531529537. The cubic root of 13649723 is about 238.9871844111.

The spelling of 13649723 in words is "thirteen million, six hundred forty-nine thousand, seven hundred twenty-three".