634983 has 4 divisors (see below), whose sum is σ = 846648. Its totient is φ = 423320.

The previous prime is 634979. The next prime is 635003. The reversal of 634983 is 389436.

634983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 634983 - 2² = 634979 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 3¹¹ + 9³ + 4² + 8 + 3¹¹ .

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

634983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634903) 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, 105828 + ... + 105833.

It is an arithmetic number, because the mean of its divisors is an integer number (211662).

2⁶³⁴⁹⁸³ is an apocalyptic number.

634983 is a deficient number, since it is larger than the sum of its proper divisors (211665).

634983 is a wasteful number, since it uses less digits than its factorization.

634983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211664.

The product of its digits is 15552, while the sum is 33.

The square root of 634983 is about 796.8582057054. The cubic root of 634983 is about 85.9516133074.

The spelling of 634983 in words is "six hundred thirty-four thousand, nine hundred eighty-three".