634231 has 4 divisors (see below), whose sum is σ = 683032. Its totient is φ = 585432.

The previous prime is 634223. The next prime is 634237. The reversal of 634231 is 132436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 634231 - 2³ = 634223 is a prime.

It is a super-2 number, since 2×634231² = 804497922722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634199 and 634208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24381 + ... + 24406.

It is an arithmetic number, because the mean of its divisors is an integer number (170758).

2⁶³⁴²³¹ is an apocalyptic number.

634231 is a deficient number, since it is larger than the sum of its proper divisors (48801).

634231 is a wasteful number, since it uses less digits than its factorization.

634231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48800.

The product of its digits is 432, while the sum is 19.

The square root of 634231 is about 796.3862128390. The cubic root of 634231 is about 85.9176695401.

Adding to 634231 its reverse (132436), we get a palindrome (766667).

The spelling of 634231 in words is "six hundred thirty-four thousand, two hundred thirty-one".