11982878 has 16 divisors (see below), whose sum is σ = 18360000. Its totient is φ = 5864352.

The previous prime is 11982851. The next prime is 11982881. The reversal of 11982878 is 87828911.

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 7 ways as a sum of consecutive naturals, for example, 23288 + ... + 23796.

It is an arithmetic number, because the mean of its divisors is an integer number (1147500).

Almost surely, 2^11982878 is an apocalyptic number.

11982878 is a deficient number, since it is larger than the sum of its proper divisors (6377122).

11982878 is a wasteful number, since it uses less digits than its factorization.

11982878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its digits is 64512, while the sum is 44.

The square root of 11982878 is about 3461.6293851306. The cubic root of 11982878 is about 228.8339089188.

The spelling of 11982878 in words is "eleven million, nine hundred eighty-two thousand, eight hundred seventy-eight".