11403839 has 2 divisors, whose sum is σ = 11403840. Its totient is φ = 11403838.

The previous prime is 11403827. The next prime is 11403859. The reversal of 11403839 is 93830411.

11403839 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 is an emirp because it is prime and its reverse (93830411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11403839 - 2²⁰ = 10355263 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11403859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701919 + 5701920.

It is an arithmetic number, because the mean of its divisors is an integer number (5701920).

Almost surely, 2^11403839 is an apocalyptic number.

11403839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403839 is an equidigital number, since it uses as much as digits as its factorization.

11403839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 11403839 is about 3376.9570622085. The cubic root of 11403839 is about 225.0869721385.

The spelling of 11403839 in words is "eleven million, four hundred three thousand, eight hundred thirty-nine".