634436 has 12 divisors (see below), whose sum is σ = 1211280. Its totient is φ = 288360.

The previous prime is 634421. The next prime is 634441.

634436 is nontrivially palindromic in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 634436.

It is an unprimeable number.

634436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7166 + ... + 7253.

It is an arithmetic number, because the mean of its divisors is an integer number (100940).

2⁶³⁴⁴³⁶ is an apocalyptic number.

It is an amenable number.

634436 is a deficient number, since it is larger than the sum of its proper divisors (576844).

634436 is a wasteful number, since it uses less digits than its factorization.

634436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14434 (or 14432 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

The square root of 634436 is about 796.5149088372. The cubic root of 634436 is about 85.9269254868.

The spelling of 634436 in words is "six hundred thirty-four thousand, four hundred thirty-six".