635434 has 4 divisors (see below), whose sum is σ = 953154. Its totient is φ = 317716.

The previous prime is 635431. The next prime is 635441. The reversal of 635434 is 434536.

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

It can be written as a sum of positive squares in only one way, i.e., 635209 + 225 = 797^2 + 15^2 .

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 635399 and 635408.

It is not an unprimeable number, because it can be changed into a prime (635431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158857 + ... + 158860.

2⁶³⁵⁴³⁴ is an apocalyptic number.

635434 is a deficient number, since it is larger than the sum of its proper divisors (317720).

635434 is a wasteful number, since it uses less digits than its factorization.

635434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317719.

The product of its digits is 4320, while the sum is 25.

The square root of 635434 is about 797.1411418312. The cubic root of 635434 is about 85.9719576861.

The spelling of 635434 in words is "six hundred thirty-five thousand, four hundred thirty-four".