11839005 has 12 divisors (see below), whose sum is σ = 20521020. Its totient is φ = 6314112.

The previous prime is 11838991. The next prime is 11839013. The reversal of 11839005 is 50093811.

11839005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6335289 + 5503716 = 2517^2 + 2346^2 .

It is not a de Polignac number, because 11839005 - 2⁹ = 11838493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11839005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131500 + ... + 131589.

It is an arithmetic number, because the mean of its divisors is an integer number (1710085).

Almost surely, 2^11839005 is an apocalyptic number.

11839005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11839005 is a deficient number, since it is larger than the sum of its proper divisors (8682015).

11839005 is a wasteful number, since it uses less digits than its factorization.

11839005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263100 (or 263097 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 11839005 is about 3440.7855207786. The cubic root of 11839005 is about 227.9143838285.

The spelling of 11839005 in words is "eleven million, eight hundred thirty-nine thousand, five".