11978804 has 6 divisors (see below), whose sum is σ = 20962914. Its totient is φ = 5989400.

The previous prime is 11978737. The next prime is 11978819. The reversal of 11978804 is 40887911.

It can be written as a sum of positive squares in only one way, i.e., 11916304 + 62500 = 3452^2 + 250^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1497347 + ... + 1497354.

It is an arithmetic number, because the mean of its divisors is an integer number (3493819).

Almost surely, 2^11978804 is an apocalyptic number.

It is an amenable number.

11978804 is a deficient number, since it is larger than the sum of its proper divisors (8984110).

11978804 is a wasteful number, since it uses less digits than its factorization.

11978804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994705 (or 2994703 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 11978804 is about 3461.0408838961. The cubic root of 11978804 is about 228.8079726059.

It can be divided in two parts, 1197 and 8804, that added together give a palindrome (10001).

The spelling of 11978804 in words is "eleven million, nine hundred seventy-eight thousand, eight hundred four".