630288671 has 4 divisors (see below), whose sum is σ = 630523200. Its totient is φ = 630054144.

The previous prime is 630288611. The next prime is 630288679. The reversal of 630288671 is 176882036.

It is a happy number.

630288671 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 630288671 - 2²² = 626094367 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 (630288679) 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, 113186 + ... + 118623.

It is an arithmetic number, because the mean of its divisors is an integer number (157630800).

Almost surely, 2^630288671 is an apocalyptic number.

630288671 is a deficient number, since it is larger than the sum of its proper divisors (234529).

630288671 is a wasteful number, since it uses less digits than its factorization.

630288671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234528.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 630288671 is about 25105.5506014108. The cubic root of 630288671 is about 857.3928029716.

The spelling of 630288671 in words is "six hundred thirty million, two hundred eighty-eight thousand, six hundred seventy-one".