13238747 has 2 divisors, whose sum is σ = 13238748. Its totient is φ = 13238746.

The previous prime is 13238723. The next prime is 13238779. The reversal of 13238747 is 74783231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13238747 - 2⁶ = 13238683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13238717) 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, 6619373 + 6619374.

It is an arithmetic number, because the mean of its divisors is an integer number (6619374).

Almost surely, 2^13238747 is an apocalyptic number.

13238747 is a deficient number, since it is larger than the sum of its proper divisors (1).

13238747 is an equidigital number, since it uses as much as digits as its factorization.

13238747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 13238747 is about 3638.5088978866. The cubic root of 13238747 is about 236.5641666389.

The spelling of 13238747 in words is "thirteen million, two hundred thirty-eight thousand, seven hundred forty-seven".