11939699 has 2 divisors, whose sum is σ = 11939700. Its totient is φ = 11939698.

The previous prime is 11939689. The next prime is 11939701. The reversal of 11939699 is 99693911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11939699 - 2⁸ = 11939443 is a prime.

Together with 11939701, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11939659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5969849 + 5969850.

It is an arithmetic number, because the mean of its divisors is an integer number (5969850).

Almost surely, 2^11939699 is an apocalyptic number.

11939699 is a deficient number, since it is larger than the sum of its proper divisors (1).

11939699 is an equidigital number, since it uses as much as digits as its factorization.

11939699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118098, while the sum is 47.

The square root of 11939699 is about 3455.3869537289. The cubic root of 11939699 is about 228.5587187315.

The spelling of 11939699 in words is "eleven million, nine hundred thirty-nine thousand, six hundred ninety-nine".