630323273 has 2 divisors, whose sum is σ = 630323274. Its totient is φ = 630323272.

The previous prime is 630323189. The next prime is 630323321. The reversal of 630323273 is 372323036.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542563849 + 87759424 = 23293^2 + 9368^2 .

It is a cyclic number.

It is not a de Polignac number, because 630323273 - 2¹² = 630319177 is a prime.

It is not a weakly prime, because it can be changed into another prime (630323173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315161636 + 315161637.

It is an arithmetic number, because the mean of its divisors is an integer number (315161637).

Almost surely, 2^630323273 is an apocalyptic number.

It is an amenable number.

630323273 is a deficient number, since it is larger than the sum of its proper divisors (1).

630323273 is an equidigital number, since it uses as much as digits as its factorization.

630323273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 29.

The square root of 630323273 is about 25106.2397224276. The cubic root of 630323273 is about 857.4084925883.

The spelling of 630323273 in words is "six hundred thirty million, three hundred twenty-three thousand, two hundred seventy-three".