2106878 has 8 divisors (see below), whose sum is σ = 3346272. Its totient is φ = 991456.

The previous prime is 2106877. The next prime is 2106887. The reversal of 2106878 is 8786012.

2106878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106877) 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, 30950 + ... + 31017.

It is an arithmetic number, because the mean of its divisors is an integer number (418284).

2^2106878 is an apocalyptic number.

2106878 is a deficient number, since it is larger than the sum of its proper divisors (1239394).

2106878 is a wasteful number, since it uses less digits than its factorization.

2106878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61986.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2106878 is about 1451.5088701072. The cubic root of 2106878 is about 128.1975708646.

The spelling of 2106878 in words is "two million, one hundred six thousand, eight hundred seventy-eight".