634522 has 16 divisors (see below), whose sum is σ = 1107072. Its totient is φ = 267120.

The previous prime is 634519. The next prime is 634523. The reversal of 634522 is 225436.

It is a happy number.

634522 is nontrivially palindromic in base 8.

It is a d-powerful number, because it can be written as 6⁷ + 3¹⁰ + 5⁴ + 4⁷ + 2¹⁴ + 2¹⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 634493 and 634502.

It is not an unprimeable number, because it can be changed into a prime (634523) 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, 483 + ... + 1225.

It is an arithmetic number, because the mean of its divisors is an integer number (69192).

2⁶³⁴⁵²² is an apocalyptic number.

634522 is a deficient number, since it is larger than the sum of its proper divisors (472550).

634522 is a wasteful number, since it uses less digits than its factorization.

634522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 1440, while the sum is 22.

The square root of 634522 is about 796.5688921870. The cubic root of 634522 is about 85.9308078756.

Adding to 634522 its reverse (225436), we get a palindrome (859958).

It can be divided in two parts, 634 and 522, that added together give a square (1156 = 34²).

The spelling of 634522 in words is "six hundred thirty-four thousand, five hundred twenty-two".