11839745 has 4 divisors (see below), whose sum is σ = 14207700. Its totient is φ = 9471792.

The previous prime is 11839727. The next prime is 11839757. The reversal of 11839745 is 54793811.

11839745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54793811 = 359 ⋅152629.

It can be written as a sum of positive squares in 2 ways, for example, as 2408704 + 9431041 = 1552^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 11839745 - 2¹⁶ = 11774209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11839699 and 11839708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183970 + ... + 1183979.

It is an arithmetic number, because the mean of its divisors is an integer number (3551925).

Almost surely, 2^11839745 is an apocalyptic number.

It is an amenable number.

11839745 is a deficient number, since it is larger than the sum of its proper divisors (2367955).

11839745 is an equidigital number, since it uses as much as digits as its factorization.

11839745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367954.

The product of its digits is 30240, while the sum is 38.

The square root of 11839745 is about 3440.8930526827. The cubic root of 11839745 is about 227.9191323449.

The spelling of 11839745 in words is "eleven million, eight hundred thirty-nine thousand, seven hundred forty-five".