634197 has 8 divisors (see below), whose sum is σ = 851040. Its totient is φ = 420080.

The previous prime is 634187. The next prime is 634199. The reversal of 634197 is 791436.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 634197 - 2⁴ = 634181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54 + ... + 1127.

It is an arithmetic number, because the mean of its divisors is an integer number (106380).

2⁶³⁴¹⁹⁷ is an apocalyptic number.

It is an amenable number.

634197 is a deficient number, since it is larger than the sum of its proper divisors (216843).

634197 is a wasteful number, since it uses less digits than its factorization.

634197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363.

The product of its digits is 4536, while the sum is 30.

The square root of 634197 is about 796.3648661261. The cubic root of 634197 is about 85.9161342146.

The spelling of 634197 in words is "six hundred thirty-four thousand, one hundred ninety-seven".