630765 has 24 divisors (see below), whose sum is σ = 1111968. Its totient is φ = 330720.

The previous prime is 630737. The next prime is 630797. The reversal of 630765 is 567036.

It is not a de Polignac number, because 630765 - 2⁵ = 630733 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4750 + ... + 4880.

It is an arithmetic number, because the mean of its divisors is an integer number (46332).

2⁶³⁰⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

630765 is a deficient number, since it is larger than the sum of its proper divisors (481203).

630765 is a wasteful number, since it uses less digits than its factorization.

630765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 630765 is about 794.2071518187. The cubic root of 630765 is about 85.7608734834.

The spelling of 630765 in words is "six hundred thirty thousand, seven hundred sixty-five".