634141899 has 8 divisors (see below), whose sum is σ = 939469520. Its totient is φ = 422761248.

The previous prime is 634141889. The next prime is 634141943. The reversal of 634141899 is 998141436.

634141899 is a `hidden beast` number, since 634 + 1 + 4 + 1 + 8 + 9 + 9 = 666.

It is not a de Polignac number, because 634141899 - 2⁷ = 634141771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634141889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11743342 + ... + 11743395.

It is an arithmetic number, because the mean of its divisors is an integer number (117433690).

Almost surely, 2^634141899 is an apocalyptic number.

634141899 is a deficient number, since it is larger than the sum of its proper divisors (305327621).

634141899 is a wasteful number, since it uses less digits than its factorization.

634141899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23486746 (or 23486740 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 634141899 is about 25182.1742309913. The cubic root of 634141899 is about 859.1364592262.

The spelling of 634141899 in words is "six hundred thirty-four million, one hundred forty-one thousand, eight hundred ninety-nine".