634876798 has 16 divisors (see below), whose sum is σ = 1011988944. Its totient is φ = 297682560.

The previous prime is 634876793. The next prime is 634876813. The reversal of 634876798 is 897678436.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634876793) 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, 24288 + ... + 43123.

It is an arithmetic number, because the mean of its divisors is an integer number (63249309).

Almost surely, 2^634876798 is an apocalyptic number.

634876798 is a deficient number, since it is larger than the sum of its proper divisors (377112146).

634876798 is a wasteful number, since it uses less digits than its factorization.

634876798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67707.

The product of its digits is 12192768, while the sum is 58.

The square root of 634876798 is about 25196.7616570066. The cubic root of 634876798 is about 859.4682118848.

The spelling of 634876798 in words is "six hundred thirty-four million, eight hundred seventy-six thousand, seven hundred ninety-eight".