2689886 has 4 divisors (see below), whose sum is σ = 4034832. Its totient is φ = 1344942.

The previous prime is 2689877. The next prime is 2689889. The reversal of 2689886 is 6889862.

2689886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2689886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689889) 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 as a sum of consecutive naturals, namely, 672470 + ... + 672473.

It is an arithmetic number, because the mean of its divisors is an integer number (1008708).

2^2689886 is an apocalyptic number.

2689886 is a deficient number, since it is larger than the sum of its proper divisors (1344946).

2689886 is a wasteful number, since it uses less digits than its factorization.

2689886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344945.

The product of its digits is 331776, while the sum is 47.

The square root of 2689886 is about 1640.0871928041. The cubic root of 2689886 is about 139.0735769740.

The spelling of 2689886 in words is "two million, six hundred eighty-nine thousand, eight hundred eighty-six".