634489007 has 4 divisors (see below), whose sum is σ = 634595856. Its totient is φ = 634382160.

The previous prime is 634489003. The next prime is 634489019. The reversal of 634489007 is 700984436.

634489007 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 634489007 - 2² = 634489003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634489001) 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, 43958 + ... + 56579.

It is an arithmetic number, because the mean of its divisors is an integer number (158648964).

Almost surely, 2^634489007 is an apocalyptic number.

634489007 is a deficient number, since it is larger than the sum of its proper divisors (106849).

634489007 is a wasteful number, since it uses less digits than its factorization.

634489007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106848.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 634489007 is about 25189.0652268003. The cubic root of 634489007 is about 859.2931847921.

The spelling of 634489007 in words is "six hundred thirty-four million, four hundred eighty-nine thousand, seven".