11739869 has 2 divisors, whose sum is σ = 11739870. Its totient is φ = 11739868.

The previous prime is 11739863. The next prime is 11739883. The reversal of 11739869 is 96893711.

11739869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9060100 + 2679769 = 3010^2 + 1637^2 .

It is a cyclic number.

It is not a de Polignac number, because 11739869 - 2²⁰ = 10691293 is a prime.

It is a super-2 number, since 2×11739869² = 275649048274322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11739863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5869934 + 5869935.

It is an arithmetic number, because the mean of its divisors is an integer number (5869935).

Almost surely, 2^11739869 is an apocalyptic number.

It is an amenable number.

11739869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11739869 is an equidigital number, since it uses as much as digits as its factorization.

11739869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 11739869 is about 3426.3492232988. The cubic root of 11739869 is about 227.2764394012.

The spelling of 11739869 in words is "eleven million, seven hundred thirty-nine thousand, eight hundred sixty-nine".