11778834 has 8 divisors (see below), whose sum is σ = 23557680. Its totient is φ = 3926276.

The previous prime is 11778797. The next prime is 11778847. The reversal of 11778834 is 43887711.

It is a sphenic number, since it is the product of 3 distinct primes.

11778834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11778792 and 11778801.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 981564 + ... + 981575.

It is an arithmetic number, because the mean of its divisors is an integer number (2944710).

Almost surely, 2^11778834 is an apocalyptic number.

11778834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11778834 is a wasteful number, since it uses less digits than its factorization.

11778834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963144.

The product of its digits is 37632, while the sum is 39.

The square root of 11778834 is about 3432.0305942692. The cubic root of 11778834 is about 227.5276076467.

It can be divided in two parts, 1177 and 8834, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 11778834 in words is "eleven million, seven hundred seventy-eight thousand, eight hundred thirty-four".