11961834 has 16 divisors (see below), whose sum is σ = 24161760. Its totient is φ = 3947600.

The previous prime is 11961823. The next prime is 11961839. The reversal of 11961834 is 43816911.

It is a junction number, because it is equal to n+sod(n) for n = 11961795 and 11961804.

It is not an unprimeable number, because it can be changed into a prime (11961839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9264 + ... + 10475.

It is an arithmetic number, because the mean of its divisors is an integer number (1510110).

Almost surely, 2^11961834 is an apocalyptic number.

11961834 is an abundant number, since it is smaller than the sum of its proper divisors (12199926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11961834 is a wasteful number, since it uses less digits than its factorization.

11961834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19845.

The product of its digits is 5184, while the sum is 33.

The square root of 11961834 is about 3458.5884403901. The cubic root of 11961834 is about 228.6998731574.

The spelling of 11961834 in words is "eleven million, nine hundred sixty-one thousand, eight hundred thirty-four".