2663886 has 16 divisors (see below), whose sum is σ = 5428944. Its totient is φ = 871104.

The previous prime is 2663867. The next prime is 2663887. The reversal of 2663886 is 6883662.

2663886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663887) 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, 3871 + ... + 4506.

It is an arithmetic number, because the mean of its divisors is an integer number (339309).

2^2663886 is an apocalyptic number.

2663886 is an abundant number, since it is smaller than the sum of its proper divisors (2765058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2663886 is a wasteful number, since it uses less digits than its factorization.

2663886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8435.

The product of its digits is 82944, while the sum is 39.

The square root of 2663886 is about 1632.1415379801. The cubic root of 2663886 is about 138.6240379423.

The spelling of 2663886 in words is "two million, six hundred sixty-three thousand, eight hundred eighty-six".