630807 has 8 divisors (see below), whose sum is σ = 845184. Its totient is φ = 418488.

The previous prime is 630803. The next prime is 630823. The reversal of 630807 is 708036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 630807 - 2² = 630803 is a prime.

630807 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 630807.

It is not an unprimeable number, because it can be changed into a prime (630803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (105648).

2⁶³⁰⁸⁰⁷ is an apocalyptic number.

630807 is a deficient number, since it is larger than the sum of its proper divisors (214377).

630807 is a wasteful number, since it uses less digits than its factorization.

630807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 630807 is about 794.2335928428. The cubic root of 630807 is about 85.7627769269.

The spelling of 630807 in words is "six hundred thirty thousand, eight hundred seven".