635043 has 4 divisors (see below), whose sum is σ = 846728. Its totient is φ = 423360.

The previous prime is 635039. The next prime is 635051. The reversal of 635043 is 340536.

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

It is not a de Polignac number, because 635043 - 2² = 635039 is a prime.

It is a super-2 number, since 2×635043² = 806559223698, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (635003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105838 + ... + 105843.

It is an arithmetic number, because the mean of its divisors is an integer number (211682).

2⁶³⁵⁰⁴³ is an apocalyptic number.

635043 is a deficient number, since it is larger than the sum of its proper divisors (211685).

635043 is a wasteful number, since it uses less digits than its factorization.

635043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211684.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 635043 is about 796.8958526683. The cubic root of 635043 is about 85.9543204321.

Adding to 635043 its reverse (340536), we get a palindrome (975579).

The spelling of 635043 in words is "six hundred thirty-five thousand, forty-three".