634589929 has 4 divisors (see below), whose sum is σ = 640520784. Its totient is φ = 628659076.

The previous prime is 634589927. The next prime is 634589947. The reversal of 634589929 is 929985436.

It is a happy number.

634589929 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 634589929 - 2¹ = 634589927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634589929.

It is not an unprimeable number, because it can be changed into a prime (634589927) 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, 2965267 + ... + 2965480.

It is an arithmetic number, because the mean of its divisors is an integer number (160130196).

Almost surely, 2^634589929 is an apocalyptic number.

It is an amenable number.

634589929 is a deficient number, since it is larger than the sum of its proper divisors (5930855).

634589929 is a wasteful number, since it uses less digits than its factorization.

634589929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930854.

The product of its digits is 4199040, while the sum is 55.

The square root of 634589929 is about 25191.0684370473. The cubic root of 634589929 is about 859.3387421820.

The spelling of 634589929 in words is "six hundred thirty-four million, five hundred eighty-nine thousand, nine hundred twenty-nine".