634313 has 2 divisors, whose sum is σ = 634314. Its totient is φ = 634312.

The previous prime is 634307. The next prime is 634327. The reversal of 634313 is 313436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529984 + 104329 = 728^2 + 323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (634343) 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 as a sum of consecutive naturals, namely, 317156 + 317157.

It is an arithmetic number, because the mean of its divisors is an integer number (317157).

2⁶³⁴³¹³ is an apocalyptic number.

It is an amenable number.

634313 is a deficient number, since it is larger than the sum of its proper divisors (1).

634313 is an equidigital number, since it uses as much as digits as its factorization.

634313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 20.

The square root of 634313 is about 796.4376937338. The cubic root of 634313 is about 85.9213721581.

Adding to 634313 its reverse (313436), we get a palindrome (947749).

The spelling of 634313 in words is "six hundred thirty-four thousand, three hundred thirteen".