13732639 has 2 divisors, whose sum is σ = 13732640. Its totient is φ = 13732638.

The previous prime is 13732619. The next prime is 13732643. The reversal of 13732639 is 93623731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13732639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13732619) 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, 6866319 + 6866320.

It is an arithmetic number, because the mean of its divisors is an integer number (6866320).

Almost surely, 2^13732639 is an apocalyptic number.

13732639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13732639 is an equidigital number, since it uses as much as digits as its factorization.

13732639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 34.

The square root of 13732639 is about 3705.7575473849. The cubic root of 13732639 is about 239.4701214901.

The spelling of 13732639 in words is "thirteen million, seven hundred thirty-two thousand, six hundred thirty-nine".