11937239 has 2 divisors, whose sum is σ = 11937240. Its totient is φ = 11937238.

The previous prime is 11937229. The next prime is 11937257. The reversal of 11937239 is 93273911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11937239 - 2⁸ = 11936983 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 11937199 and 11937208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11937229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968619 + 5968620.

It is an arithmetic number, because the mean of its divisors is an integer number (5968620).

Almost surely, 2^11937239 is an apocalyptic number.

11937239 is a deficient number, since it is larger than the sum of its proper divisors (1).

11937239 is an equidigital number, since it uses as much as digits as its factorization.

11937239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The square root of 11937239 is about 3455.0309694705. The cubic root of 11937239 is about 228.5430205952.

The spelling of 11937239 in words is "eleven million, nine hundred thirty-seven thousand, two hundred thirty-nine".