11978196 has 24 divisors (see below), whose sum is σ = 28228704. Its totient is φ = 3952800.

The previous prime is 11978177. The next prime is 11978231. The reversal of 11978196 is 69187911.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3730 + ... + 6153.

It is an arithmetic number, because the mean of its divisors is an integer number (1176196).

Almost surely, 2^11978196 is an apocalyptic number.

It is an amenable number.

11978196 is an abundant number, since it is smaller than the sum of its proper divisors (16250508).

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

11978196 is a wasteful number, since it uses less digits than its factorization.

11978196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991 (or 9989 counting only the distinct ones).

The product of its digits is 27216, while the sum is 42.

The square root of 11978196 is about 3460.9530479335. The cubic root of 11978196 is about 228.8041013903.

The spelling of 11978196 in words is "eleven million, nine hundred seventy-eight thousand, one hundred ninety-six".