11977418 has 16 divisors (see below), whose sum is σ = 19539144. Its totient is φ = 5483520.

The previous prime is 11977397. The next prime is 11977421. The reversal of 11977418 is 81477911.

It is a happy number.

11977418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11950849 + 26569 = 3457^2 + 163^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3503 + ... + 6018.

Almost surely, 2^11977418 is an apocalyptic number.

11977418 is a deficient number, since it is larger than the sum of its proper divisors (7561726).

11977418 is a wasteful number, since it uses less digits than its factorization.

11977418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9577.

The product of its digits is 14112, while the sum is 38.

The square root of 11977418 is about 3460.8406493221. The cubic root of 11977418 is about 228.7991475713.

The spelling of 11977418 in words is "eleven million, nine hundred seventy-seven thousand, four hundred eighteen".