634898 has 8 divisors (see below), whose sum is σ = 1038960. Its totient is φ = 288580.

The previous prime is 634891. The next prime is 634901. The reversal of 634898 is 898436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (634891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14408 + ... + 14451.

It is an arithmetic number, because the mean of its divisors is an integer number (129870).

2⁶³⁴⁸⁹⁸ is an apocalyptic number.

634898 is a deficient number, since it is larger than the sum of its proper divisors (404062).

634898 is a wasteful number, since it uses less digits than its factorization.

634898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28872.

The product of its digits is 41472, while the sum is 38.

The square root of 634898 is about 796.8048694630. The cubic root of 634898 is about 85.9477779223.

It can be divided in two parts, 6348 and 98, that added together give a palindrome (6446).

The spelling of 634898 in words is "six hundred thirty-four thousand, eight hundred ninety-eight".