634851793 has 2 divisors, whose sum is σ = 634851794. Its totient is φ = 634851792.

The previous prime is 634851743. The next prime is 634851797. The reversal of 634851793 is 397158436.

634851793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 534210769 + 100641024 = 23113^2 + 10032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634851793 is a prime.

It is not a weakly prime, because it can be changed into another prime (634851797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317425896 + 317425897.

It is an arithmetic number, because the mean of its divisors is an integer number (317425897).

Almost surely, 2^634851793 is an apocalyptic number.

It is an amenable number.

634851793 is a deficient number, since it is larger than the sum of its proper divisors (1).

634851793 is an equidigital number, since it uses as much as digits as its factorization.

634851793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 634851793 is about 25196.2654574046. The cubic root of 634851793 is about 859.4569281812.

The spelling of 634851793 in words is "six hundred thirty-four million, eight hundred fifty-one thousand, seven hundred ninety-three".