634761163 has 2 divisors, whose sum is σ = 634761164. Its totient is φ = 634761162.

The previous prime is 634761137. The next prime is 634761167. The reversal of 634761163 is 361167436.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634761163 is a prime.

It is a super-2 number, since 2×634761163² = 805843468106225138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (634761167) 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, 317380581 + 317380582.

It is an arithmetic number, because the mean of its divisors is an integer number (317380582).

Almost surely, 2^634761163 is an apocalyptic number.

634761163 is a deficient number, since it is larger than the sum of its proper divisors (1).

634761163 is an equidigital number, since it uses as much as digits as its factorization.

634761163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 634761163 is about 25194.4669123996. The cubic root of 634761163 is about 859.4160281953.

The spelling of 634761163 in words is "six hundred thirty-four million, seven hundred sixty-one thousand, one hundred sixty-three".