630860 has 12 divisors (see below), whose sum is σ = 1324848. Its totient is φ = 252336.

The previous prime is 630841. The next prime is 630863. The reversal of 630860 is 68036.

Added to its reverse (68036) it gives a square (698896 = 836²).

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 630860.

It is not an unprimeable number, because it can be changed into a prime (630863) 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 3 ways as a sum of consecutive naturals, for example, 15752 + ... + 15791.

It is an arithmetic number, because the mean of its divisors is an integer number (110404).

2⁶³⁰⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

630860 is an abundant number, since it is smaller than the sum of its proper divisors (693988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630860 is a wasteful number, since it uses less digits than its factorization.

630860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31552 (or 31550 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 630860 is about 794.2669576408. The cubic root of 630860 is about 85.7651787709.

Adding to 630860 its reverse (68036), we get a palindrome (698896).

The spelling of 630860 in words is "six hundred thirty thousand, eight hundred sixty".