11778936 has 64 divisors (see below), whose sum is σ = 33398400. Its totient is φ = 3431808.

The previous prime is 11778919. The next prime is 11778953. The reversal of 11778936 is 63987711.

It is an interprime number because it is at equal distance from previous prime (11778919) and next prime (11778953).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4935 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (521850).

Almost surely, 2^11778936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11778936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16699200).

11778936 is an abundant number, since it is smaller than the sum of its proper divisors (21619464).

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

11778936 is a wasteful number, since it uses less digits than its factorization.

11778936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028 (or 2024 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 11778936 is about 3432.0454542445. The cubic root of 11778936 is about 227.5282644109.

The spelling of 11778936 in words is "eleven million, seven hundred seventy-eight thousand, nine hundred thirty-six".