630775 has 12 divisors (see below), whose sum is σ = 816912. Its totient is φ = 482240.

The previous prime is 630737. The next prime is 630797. The reversal of 630775 is 577036.

It is not a de Polignac number, because 630775 - 2⁹ = 630263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (68076).

2⁶³⁰⁷⁷⁵ is an apocalyptic number.

630775 is a deficient number, since it is larger than the sum of its proper divisors (186137).

630775 is a wasteful number, since it uses less digits than its factorization.

630775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 630775 is about 794.2134473805. The cubic root of 630775 is about 85.7613266919.

The spelling of 630775 in words is "six hundred thirty thousand, seven hundred seventy-five".