634056659 has 2 divisors, whose sum is σ = 634056660. Its totient is φ = 634056658.

The previous prime is 634056623. The next prime is 634056713. The reversal of 634056659 is 956650436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634056659 - 2¹² = 634052563 is a prime.

It is not a weakly prime, because it can be changed into another prime (634056859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317028329 + 317028330.

It is an arithmetic number, because the mean of its divisors is an integer number (317028330).

Almost surely, 2^634056659 is an apocalyptic number.

634056659 is a deficient number, since it is larger than the sum of its proper divisors (1).

634056659 is an equidigital number, since it uses as much as digits as its factorization.

634056659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 44.

The square root of 634056659 is about 25180.4817070683. The cubic root of 634056659 is about 859.0979630718.

The spelling of 634056659 in words is "six hundred thirty-four million, fifty-six thousand, six hundred fifty-nine".