13448639 has 2 divisors, whose sum is σ = 13448640. Its totient is φ = 13448638.

The previous prime is 13448623. The next prime is 13448651. The reversal of 13448639 is 93684431.

It is a strong prime.

It is an emirp because it is prime and its reverse (93684431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13448639 - 2⁴ = 13448623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13448339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6724319 + 6724320.

It is an arithmetic number, because the mean of its divisors is an integer number (6724320).

Almost surely, 2^13448639 is an apocalyptic number.

13448639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13448639 is an equidigital number, since it uses as much as digits as its factorization.

13448639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 13448639 is about 3667.2386069085. The cubic root of 13448639 is about 237.8078092052.

The spelling of 13448639 in words is "thirteen million, four hundred forty-eight thousand, six hundred thirty-nine".