2863638 has 24 divisors (see below), whose sum is σ = 6475248. Its totient is φ = 912912.

The previous prime is 2863607. The next prime is 2863649. The reversal of 2863638 is 8363682.

2863638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3045 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (269802).

2^2863638 is an apocalyptic number.

2863638 is an abundant number, since it is smaller than the sum of its proper divisors (3611610).

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

2863638 is a wasteful number, since it uses less digits than its factorization.

2863638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948 (or 6945 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 2863638 is about 1692.2287079470. The cubic root of 2863638 is about 142.0057856533.

The spelling of 2863638 in words is "two million, eight hundred sixty-three thousand, six hundred thirty-eight".