630069931 has 2 divisors, whose sum is σ = 630069932. Its totient is φ = 630069930.

The previous prime is 630069917. The next prime is 630069953. The reversal of 630069931 is 139960036.

630069931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630069931 - 2¹¹ = 630067883 is a prime.

It is a super-2 number, since 2×630069931² = 793976235900689522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (630069901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315034965 + 315034966.

It is an arithmetic number, because the mean of its divisors is an integer number (315034966).

Almost surely, 2^630069931 is an apocalyptic number.

630069931 is a deficient number, since it is larger than the sum of its proper divisors (1).

630069931 is an equidigital number, since it uses as much as digits as its factorization.

630069931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 630069931 is about 25101.1938162311. The cubic root of 630069931 is about 857.2936062012.

The spelling of 630069931 in words is "six hundred thirty million, sixty-nine thousand, nine hundred thirty-one".