630622 has 8 divisors (see below), whose sum is σ = 959472. Its totient is φ = 310800.

The previous prime is 630613. The next prime is 630659. The reversal of 630622 is 226036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 630622.

It is a congruent number.

It is an unprimeable number.

630622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2079 + ... + 2362.

It is an arithmetic number, because the mean of its divisors is an integer number (119934).

2⁶³⁰⁶²² is an apocalyptic number.

630622 is a deficient number, since it is larger than the sum of its proper divisors (328850).

630622 is a wasteful number, since it uses less digits than its factorization.

630622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 630622 is about 794.1171198255. The cubic root of 630622 is about 85.7543920776.

Adding to 630622 its reverse (226036), we get a palindrome (856658).

It can be divided in two parts, 6306 and 22, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 630622 in words is "six hundred thirty thousand, six hundred twenty-two".