11963778 has 8 divisors (see below), whose sum is σ = 23927568. Its totient is φ = 3987924.

The previous prime is 11963729. The next prime is 11963779. The reversal of 11963778 is 87736911.

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

11963778 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11963779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996976 + ... + 996987.

It is an arithmetic number, because the mean of its divisors is an integer number (2990946).

Almost surely, 2^11963778 is an apocalyptic number.

11963778 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.

11963778 is a wasteful number, since it uses less digits than its factorization.

11963778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993968.

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

The square root of 11963778 is about 3458.8694684824. The cubic root of 11963778 is about 228.7122616833.

The spelling of 11963778 in words is "eleven million, nine hundred sixty-three thousand, seven hundred seventy-eight".