630783 has 12 divisors (see below), whose sum is σ = 920920. Its totient is φ = 416016.

The previous prime is 630737. The next prime is 630797. The reversal of 630783 is 387036.

It is a happy number.

It is not a de Polignac number, because 630783 - 2⁶ = 630719 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660 + ... + 1302.

2⁶³⁰⁷⁸³ is an apocalyptic number.

630783 is a deficient number, since it is larger than the sum of its proper divisors (290137).

630783 is a wasteful number, since it uses less digits than its factorization.

630783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 630783 is about 794.2184837940. The cubic root of 630783 is about 85.7616892552.

The spelling of 630783 in words is "six hundred thirty thousand, seven hundred eighty-three".