634590667 has 2 divisors, whose sum is σ = 634590668. Its totient is φ = 634590666.

The previous prime is 634590629. The next prime is 634590683. The reversal of 634590667 is 766095436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634590667 - 2¹⁵ = 634557899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (634590617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317295333 + 317295334.

It is an arithmetic number, because the mean of its divisors is an integer number (317295334).

Almost surely, 2^634590667 is an apocalyptic number.

634590667 is a deficient number, since it is larger than the sum of its proper divisors (1).

634590667 is an equidigital number, since it uses as much as digits as its factorization.

634590667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 634590667 is about 25191.0830850918. The cubic root of 634590667 is about 859.3390753062.

The spelling of 634590667 in words is "six hundred thirty-four million, five hundred ninety thousand, six hundred sixty-seven".