11747399 has 2 divisors, whose sum is σ = 11747400. Its totient is φ = 11747398.

The previous prime is 11747381. The next prime is 11747401. The reversal of 11747399 is 99374711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11747399 is a prime.

Together with 11747401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11747369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5873699 + 5873700.

It is an arithmetic number, because the mean of its divisors is an integer number (5873700).

Almost surely, 2^11747399 is an apocalyptic number.

11747399 is a deficient number, since it is larger than the sum of its proper divisors (1).

11747399 is an equidigital number, since it uses as much as digits as its factorization.

11747399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 41.

The square root of 11747399 is about 3427.4478843594. The cubic root of 11747399 is about 227.3250210285.

The spelling of 11747399 in words is "eleven million, seven hundred forty-seven thousand, three hundred ninety-nine".