13439653 has 2 divisors, whose sum is σ = 13439654. Its totient is φ = 13439652.

The previous prime is 13439633. The next prime is 13439663. The reversal of 13439653 is 35693431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10349089 + 3090564 = 3217^2 + 1758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13439653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13439633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6719826 + 6719827.

It is an arithmetic number, because the mean of its divisors is an integer number (6719827).

Almost surely, 2^13439653 is an apocalyptic number.

It is an amenable number.

13439653 is a deficient number, since it is larger than the sum of its proper divisors (1).

13439653 is an equidigital number, since it uses as much as digits as its factorization.

13439653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 34.

The square root of 13439653 is about 3666.0132296543. The cubic root of 13439653 is about 237.7548319214.

The spelling of 13439653 in words is "thirteen million, four hundred thirty-nine thousand, six hundred fifty-three".