634227313 has 4 divisors (see below), whose sum is σ = 671534820. Its totient is φ = 596919808.

The previous prime is 634227301. The next prime is 634227337. The reversal of 634227313 is 313722436.

634227313 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 can be written as a sum of positive squares in 2 ways, for example, as 531164209 + 103063104 = 23047^2 + 10152^2 .

It is a cyclic number.

It is not a de Polignac number, because 634227313 - 2⁵ = 634227281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634227343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18653728 + ... + 18653761.

It is an arithmetic number, because the mean of its divisors is an integer number (167883705).

Almost surely, 2^634227313 is an apocalyptic number.

It is an amenable number.

634227313 is a deficient number, since it is larger than the sum of its proper divisors (37307507).

634227313 is a wasteful number, since it uses less digits than its factorization.

634227313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37307506.

The product of its digits is 18144, while the sum is 31.

The square root of 634227313 is about 25183.8700957577. The cubic root of 634227313 is about 859.1750305024.

Adding to 634227313 its reverse (313722436), we get a palindrome (947949749).

The spelling of 634227313 in words is "six hundred thirty-four million, two hundred twenty-seven thousand, three hundred thirteen".