634782347 has 2 divisors, whose sum is σ = 634782348. Its totient is φ = 634782346.

The previous prime is 634782331. The next prime is 634782353. The reversal of 634782347 is 743287436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634782347 - 2⁴ = 634782331 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 634782298 and 634782307.

It is not a weakly prime, because it can be changed into another prime (634782307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317391173 + 317391174.

It is an arithmetic number, because the mean of its divisors is an integer number (317391174).

Almost surely, 2^634782347 is an apocalyptic number.

634782347 is a deficient number, since it is larger than the sum of its proper divisors (1).

634782347 is an equidigital number, since it uses as much as digits as its factorization.

634782347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 44.

The square root of 634782347 is about 25194.8873186605. The cubic root of 634782347 is about 859.4255885715.

The spelling of 634782347 in words is "six hundred thirty-four million, seven hundred eighty-two thousand, three hundred forty-seven".