11867878 has 8 divisors (see below), whose sum is σ = 19420200. Its totient is φ = 5394480.

The previous prime is 11867831. The next prime is 11867893. The reversal of 11867878 is 87876811.

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

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 3 ways as a sum of consecutive naturals, for example, 269703 + ... + 269746.

It is an arithmetic number, because the mean of its divisors is an integer number (2427525).

Almost surely, 2^11867878 is an apocalyptic number.

11867878 is a deficient number, since it is larger than the sum of its proper divisors (7552322).

11867878 is a wasteful number, since it uses less digits than its factorization.

11867878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539462.

The product of its digits is 150528, while the sum is 46.

The square root of 11867878 is about 3444.9786646654. The cubic root of 11867878 is about 228.0995128341.

The spelling of 11867878 in words is "eleven million, eight hundred sixty-seven thousand, eight hundred seventy-eight".