634435 has 8 divisors (see below), whose sum is σ = 766080. Its totient is φ = 504384.

The previous prime is 634421. The next prime is 634441. The reversal of 634435 is 534436.

634435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 634435 - 2⁷ = 634307 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 3¹¹ + 4² + 4³ + 3¹¹ + 5³ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831 + ... + 1399.

It is an arithmetic number, because the mean of its divisors is an integer number (95760).

2⁶³⁴⁴³⁵ is an apocalyptic number.

634435 is a deficient number, since it is larger than the sum of its proper divisors (131645).

634435 is a wasteful number, since it uses less digits than its factorization.

634435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

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

The square root of 634435 is about 796.5142811024. The cubic root of 634435 is about 85.9268803406.

Subtracting from 634435 its reverse (534436), we obtain a palindrome (99999).

The spelling of 634435 in words is "six hundred thirty-four thousand, four hundred thirty-five".