630067331 has 2 divisors, whose sum is σ = 630067332. Its totient is φ = 630067330.

The previous prime is 630067301. The next prime is 630067349. The reversal of 630067331 is 133760036.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630067331 is a prime.

It is a super-2 number, since 2×630067331² = 793969683186927122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 630067294 and 630067303.

It is not a weakly prime, because it can be changed into another prime (630067301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315033665 + 315033666.

It is an arithmetic number, because the mean of its divisors is an integer number (315033666).

Almost surely, 2^630067331 is an apocalyptic number.

630067331 is a deficient number, since it is larger than the sum of its proper divisors (1).

630067331 is an equidigital number, since it uses as much as digits as its factorization.

630067331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 630067331 is about 25101.1420258123. The cubic root of 630067331 is about 857.2924269848.

The spelling of 630067331 in words is "six hundred thirty million, sixty-seven thousand, three hundred thirty-one".