630941 has 2 divisors, whose sum is σ = 630942. Its totient is φ = 630940.

The previous prime is 630919. The next prime is 630967. The reversal of 630941 is 149036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511225 + 119716 = 715^2 + 346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630941 is a prime.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315470 + 315471.

It is an arithmetic number, because the mean of its divisors is an integer number (315471).

2⁶³⁰⁹⁴¹ is an apocalyptic number.

It is an amenable number.

630941 is a deficient number, since it is larger than the sum of its proper divisors (1).

630941 is an equidigital number, since it uses as much as digits as its factorization.

630941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 630941 is about 794.3179464169. The cubic root of 630941 is about 85.7688492536.

Adding to 630941 its reverse (149036), we get a palindrome (779977).

The spelling of 630941 in words is "six hundred thirty thousand, nine hundred forty-one".