630573899 has 2 divisors, whose sum is σ = 630573900. Its totient is φ = 630573898.

The previous prime is 630573833. The next prime is 630573907. The reversal of 630573899 is 998375036.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630573899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (630573799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315286949 + 315286950.

It is an arithmetic number, because the mean of its divisors is an integer number (315286950).

Almost surely, 2^630573899 is an apocalyptic number.

630573899 is a deficient number, since it is larger than the sum of its proper divisors (1).

630573899 is an equidigital number, since it uses as much as digits as its factorization.

630573899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 630573899 is about 25111.2305353601. The cubic root of 630573899 is about 857.5221170279.

The spelling of 630573899 in words is "six hundred thirty million, five hundred seventy-three thousand, eight hundred ninety-nine".