6368634 has 12 divisors (see below), whose sum is σ = 13798746. Its totient is φ = 2122872.

The previous prime is 6368627. The next prime is 6368647. The reversal of 6368634 is 4368636.

It can be written as a sum of positive squares in only one way, i.e., 4422609 + 1946025 = 2103^2 + 1395^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176889 + ... + 176924.

Almost surely, 2^6368634 is an apocalyptic number.

6368634 is an abundant number, since it is smaller than the sum of its proper divisors (7430112).

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

6368634 is a wasteful number, since it uses less digits than its factorization.

6368634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353821 (or 353818 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6368634 is about 2523.6152638625. The cubic root of 6368634 is about 185.3597480020.

It can be divided in two parts, 636863 and 4, that multiplied together give a palindrome (2547452).

The spelling of 6368634 in words is "six million, three hundred sixty-eight thousand, six hundred thirty-four".