634141877 has 2 divisors, whose sum is σ = 634141878. Its totient is φ = 634141876.

The previous prime is 634141847. The next prime is 634141889. The reversal of 634141877 is 778141436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593360881 + 40780996 = 24359^2 + 6386^2 .

It is a cyclic number.

It is not a de Polignac number, because 634141877 - 2²⁰ = 633093301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634141847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317070938 + 317070939.

It is an arithmetic number, because the mean of its divisors is an integer number (317070939).

Almost surely, 2^634141877 is an apocalyptic number.

It is an amenable number.

634141877 is a deficient number, since it is larger than the sum of its proper divisors (1).

634141877 is an equidigital number, since it uses as much as digits as its factorization.

634141877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 634141877 is about 25182.1737941743. The cubic root of 634141877 is about 859.1364492910.

The spelling of 634141877 in words is "six hundred thirty-four million, one hundred forty-one thousand, eight hundred seventy-seven".