634395347 has 2 divisors, whose sum is σ = 634395348. Its totient is φ = 634395346.

The previous prime is 634395323. The next prime is 634395371. The reversal of 634395347 is 743593436.

It is a balanced prime because it is at equal distance from previous prime (634395323) and next prime (634395371).

It is a cyclic number.

It is not a de Polignac number, because 634395347 - 2²⁶ = 567286483 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 634395298 and 634395307.

It is not a weakly prime, because it can be changed into another prime (634395397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317197673 + 317197674.

It is an arithmetic number, because the mean of its divisors is an integer number (317197674).

Almost surely, 2^634395347 is an apocalyptic number.

634395347 is a deficient number, since it is larger than the sum of its proper divisors (1).

634395347 is an equidigital number, since it uses as much as digits as its factorization.

634395347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 44.

The square root of 634395347 is about 25187.2060181355. The cubic root of 634395347 is about 859.2509012331.

It can be divided in two parts, 63439 and 5347, that added together give a palindrome (68786).

The spelling of 634395347 in words is "six hundred thirty-four million, three hundred ninety-five thousand, three hundred forty-seven".