634164029 has 2 divisors, whose sum is σ = 634164030. Its totient is φ = 634164028.

The previous prime is 634164001. The next prime is 634164049. The reversal of 634164029 is 920461436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 631516900 + 2647129 = 25130^2 + 1627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634164029 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634164029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634164049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317082014 + 317082015.

It is an arithmetic number, because the mean of its divisors is an integer number (317082015).

Almost surely, 2^634164029 is an apocalyptic number.

It is an amenable number.

634164029 is a deficient number, since it is larger than the sum of its proper divisors (1).

634164029 is an equidigital number, since it uses as much as digits as its factorization.

634164029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 634164029 is about 25182.6136252773. The cubic root of 634164029 is about 859.1464530297.

The spelling of 634164029 in words is "six hundred thirty-four million, one hundred sixty-four thousand, twenty-nine".