630825 has 24 divisors (see below), whose sum is σ = 1124928. Its totient is φ = 310080.

The previous prime is 630823. The next prime is 630827. The reversal of 630825 is 528036.

It is an interprime number because it is at equal distance from previous prime (630823) and next prime (630827).

It is not a de Polignac number, because 630825 - 2¹ = 630823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630795 and 630804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 652 + ... + 1298.

It is an arithmetic number, because the mean of its divisors is an integer number (46872).

2⁶³⁰⁸²⁵ is an apocalyptic number.

630825 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

630825 is a deficient number, since it is larger than the sum of its proper divisors (494103).

630825 is a wasteful number, since it uses less digits than its factorization.

630825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 630825 is about 794.2449244408. The cubic root of 630825 is about 85.7635926626.

The spelling of 630825 in words is "six hundred thirty thousand, eight hundred twenty-five".