11878611 has 8 divisors (see below), whose sum is σ = 16349184. Its totient is φ = 7663560.

The previous prime is 11878609. The next prime is 11878613. The reversal of 11878611 is 11687811.

It is an interprime number because it is at equal distance from previous prime (11878609) and next prime (11878613).

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

It is not a de Polignac number, because 11878611 - 2¹ = 11878609 is a prime.

It is a super-2 number, since 2×11878611² = 282202798578642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 7 ways as a sum of consecutive naturals, for example, 63771 + ... + 63956.

It is an arithmetic number, because the mean of its divisors is an integer number (2043648).

Almost surely, 2^11878611 is an apocalyptic number.

11878611 is a deficient number, since it is larger than the sum of its proper divisors (4470573).

11878611 is a wasteful number, since it uses less digits than its factorization.

11878611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127761.

The product of its digits is 2688, while the sum is 33.

The square root of 11878611 is about 3446.5360871460. The cubic root of 11878611 is about 228.1682545365.

The spelling of 11878611 in words is "eleven million, eight hundred seventy-eight thousand, six hundred eleven".