11837869 has 2 divisors, whose sum is σ = 11837870. Its totient is φ = 11837868.

The previous prime is 11837867. The next prime is 11837873. The reversal of 11837869 is 96873811.

11837869 is digitally balanced in base 2, 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., 6953769 + 4884100 = 2637^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 11837869 - 2¹ = 11837867 is a prime.

It is a super-2 number, since 2×11837869² = 280270284922322, which contains 22 as substring.

Together with 11837867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11837863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5918934 + 5918935.

It is an arithmetic number, because the mean of its divisors is an integer number (5918935).

Almost surely, 2^11837869 is an apocalyptic number.

It is an amenable number.

11837869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11837869 is an equidigital number, since it uses as much as digits as its factorization.

11837869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The square root of 11837869 is about 3440.6204382349. The cubic root of 11837869 is about 227.9070938290.

The spelling of 11837869 in words is "eleven million, eight hundred thirty-seven thousand, eight hundred sixty-nine".