11618839 has 2 divisors, whose sum is σ = 11618840. Its totient is φ = 11618838.

The previous prime is 11618807. The next prime is 11618843. The reversal of 11618839 is 93881611.

11618839 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (93881611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11618839 - 2⁵ = 11618807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11618798 and 11618807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11618039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5809419 + 5809420.

It is an arithmetic number, because the mean of its divisors is an integer number (5809420).

Almost surely, 2^11618839 is an apocalyptic number.

11618839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11618839 is an equidigital number, since it uses as much as digits as its factorization.

11618839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 37.

The square root of 11618839 is about 3408.6418116311. The cubic root of 11618839 is about 226.4927185713.

It can be divided in two parts, 1161 and 8839, that added together give a 4-th power (10000 = 10⁴).

The spelling of 11618839 in words is "eleven million, six hundred eighteen thousand, eight hundred thirty-nine".