630089491 has 2 divisors, whose sum is σ = 630089492. Its totient is φ = 630089490.

The previous prime is 630089461. The next prime is 630089503. The reversal of 630089491 is 194980036.

630089491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 630089491 - 2¹⁷ = 629958419 is a prime.

It is not a weakly prime, because it can be changed into another prime (630089461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315044745 + 315044746.

It is an arithmetic number, because the mean of its divisors is an integer number (315044746).

Almost surely, 2^630089491 is an apocalyptic number.

630089491 is a deficient number, since it is larger than the sum of its proper divisors (1).

630089491 is an equidigital number, since it uses as much as digits as its factorization.

630089491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 630089491 is about 25101.5834361102. The cubic root of 630089491 is about 857.3024774331.

The spelling of 630089491 in words is "six hundred thirty million, eighty-nine thousand, four hundred ninety-one".