630946 has 8 divisors (see below), whose sum is σ = 962640. Its totient is φ = 310068.

The previous prime is 630941. The next prime is 630967. The reversal of 630946 is 649036.

630946 = 73² + 74² + ... + 131².

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

It is not an unprimeable number, because it can be changed into a prime (630941) 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, 2556 + ... + 2791.

It is an arithmetic number, because the mean of its divisors is an integer number (120330).

2⁶³⁰⁹⁴⁶ is an apocalyptic number.

630946 is a deficient number, since it is larger than the sum of its proper divisors (331694).

630946 is a wasteful number, since it uses less digits than its factorization.

630946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 630946 is about 794.3210937650. The cubic root of 630946 is about 85.7690758163.

The spelling of 630946 in words is "six hundred thirty thousand, nine hundred forty-six".