11238739 has 2 divisors, whose sum is σ = 11238740. Its totient is φ = 11238738.

The previous prime is 11238737. The next prime is 11238749. The reversal of 11238739 is 93783211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11238739 - 2¹ = 11238737 is a prime.

Together with 11238737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11238737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5619369 + 5619370.

It is an arithmetic number, because the mean of its divisors is an integer number (5619370).

Almost surely, 2^11238739 is an apocalyptic number.

11238739 is a deficient number, since it is larger than the sum of its proper divisors (1).

11238739 is an equidigital number, since it uses as much as digits as its factorization.

11238739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 11238739 is about 3352.4228551900. The cubic root of 11238739 is about 223.9954492592.

The spelling of 11238739 in words is "eleven million, two hundred thirty-eight thousand, seven hundred thirty-nine".