11878618 has 8 divisors (see below), whose sum is σ = 17866080. Its totient is φ = 5923260.

The previous prime is 11878613. The next prime is 11878627. The reversal of 11878618 is 81687811.

It is a happy number.

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

It is a super-2 number, since 2×11878618² = 282203131179848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11878613) 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, 7078 + ... + 8593.

It is an arithmetic number, because the mean of its divisors is an integer number (2233260).

Almost surely, 2^11878618 is an apocalyptic number.

11878618 is a deficient number, since it is larger than the sum of its proper divisors (5987462).

11878618 is a wasteful number, since it uses less digits than its factorization.

11878618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16052.

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

The square root of 11878618 is about 3446.5371026583. The cubic root of 11878618 is about 228.1682993559.

The spelling of 11878618 in words is "eleven million, eight hundred seventy-eight thousand, six hundred eighteen".