11678818 has 4 divisors (see below), whose sum is σ = 17518230. Its totient is φ = 5839408.

The previous prime is 11678783. The next prime is 11678827. The reversal of 11678818 is 81887611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10712529 + 966289 = 3273^2 + 983^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2919703 + ... + 2919706.

Almost surely, 2^11678818 is an apocalyptic number.

11678818 is a deficient number, since it is larger than the sum of its proper divisors (5839412).

11678818 is an equidigital number, since it uses as much as digits as its factorization.

11678818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839411.

The product of its digits is 21504, while the sum is 40.

The square root of 11678818 is about 3417.4285654568. The cubic root of 11678818 is about 226.8817849160.

The spelling of 11678818 in words is "eleven million, six hundred seventy-eight thousand, eight hundred eighteen".