11859939 has 40 divisors (see below), whose sum is σ = 21818720. Its totient is φ = 6251904.

The previous prime is 11859929. The next prime is 11859961. The reversal of 11859939 is 93995811.

11859939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11859939 - 2⁴ = 11859923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11859894 and 11859903.

It is not an unprimeable number, because it can be changed into a prime (11859929) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6567 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (545468).

Almost surely, 2^11859939 is an apocalyptic number.

11859939 is a deficient number, since it is larger than the sum of its proper divisors (9958781).

11859939 is a wasteful number, since it uses less digits than its factorization.

11859939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1632 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 11859939 is about 3443.8262151276. The cubic root of 11859939 is about 228.0486392076.

It can be divided in two parts, 118599 and 39, that multiplied together give a triangular number (4625361 = T₃₀₄₁).

The spelling of 11859939 in words is "eleven million, eight hundred fifty-nine thousand, nine hundred thirty-nine".