634834199 has 4 divisors (see below), whose sum is σ = 634900464. Its totient is φ = 634767936.

The previous prime is 634834183. The next prime is 634834219. The reversal of 634834199 is 991438436.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 634834199 - 2⁴ = 634834183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634834129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15707 + ... + 38940.

It is an arithmetic number, because the mean of its divisors is an integer number (158725116).

Almost surely, 2^634834199 is an apocalyptic number.

634834199 is a deficient number, since it is larger than the sum of its proper divisors (66265).

634834199 is a wasteful number, since it uses less digits than its factorization.

634834199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66264.

The product of its digits is 559872, while the sum is 47.

The square root of 634834199 is about 25195.9163159429. The cubic root of 634834199 is about 859.4489885723.

The spelling of 634834199 in words is "six hundred thirty-four million, eight hundred thirty-four thousand, one hundred ninety-nine".