2634663 has 4 divisors (see below), whose sum is σ = 3512888. Its totient is φ = 1756440.

The previous prime is 2634649. The next prime is 2634689. The reversal of 2634663 is 3664362.

2634663 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 not a de Polignac number, because 2634663 - 2⁵ = 2634631 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2634663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634613) 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, 439108 + ... + 439113.

It is an arithmetic number, because the mean of its divisors is an integer number (878222).

2^2634663 is an apocalyptic number.

2634663 is a deficient number, since it is larger than the sum of its proper divisors (878225).

2634663 is an equidigital number, since it uses as much as digits as its factorization.

2634663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878224.

The product of its digits is 15552, while the sum is 30.

The square root of 2634663 is about 1623.1645018297. The cubic root of 2634663 is about 138.1152681117.

The spelling of 2634663 in words is "two million, six hundred thirty-four thousand, six hundred sixty-three".