2568634 has 4 divisors (see below), whose sum is σ = 3852954. Its totient is φ = 1284316.

The previous prime is 2568623. The next prime is 2568641. The reversal of 2568634 is 4368652.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2550409 + 18225 = 1597^2 + 135^2 .

It is a d-powerful number, because it can be written as 2¹⁵ + 5⁹ + 6² + 8³ + 6⁶ + 3¹² + 4⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 2568634.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642157 + ... + 642160.

2^2568634 is an apocalyptic number.

2568634 is a deficient number, since it is larger than the sum of its proper divisors (1284320).

2568634 is a wasteful number, since it uses less digits than its factorization.

2568634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284319.

The product of its digits is 34560, while the sum is 34.

The square root of 2568634 is about 1602.6958538662. The cubic root of 2568634 is about 136.9516941244.

The spelling of 2568634 in words is "two million, five hundred sixty-eight thousand, six hundred thirty-four".