11939069 has 2 divisors, whose sum is σ = 11939070. Its totient is φ = 11939068.

The previous prime is 11939041. The next prime is 11939071. The reversal of 11939069 is 96093911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11356900 + 582169 = 3370^2 + 763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11939069 is a prime.

It is a super-2 number, since 2×11939069² = 285082737173522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 11939071, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11939009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5969534 + 5969535.

It is an arithmetic number, because the mean of its divisors is an integer number (5969535).

Almost surely, 2^11939069 is an apocalyptic number.

It is an amenable number.

11939069 is a deficient number, since it is larger than the sum of its proper divisors (1).

11939069 is an equidigital number, since it uses as much as digits as its factorization.

11939069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 11939069 is about 3455.2957905221. The cubic root of 11939069 is about 228.5546986825.

The spelling of 11939069 in words is "eleven million, nine hundred thirty-nine thousand, sixty-nine".