630826783 has 2 divisors, whose sum is σ = 630826784. Its totient is φ = 630826782.

The previous prime is 630826759. The next prime is 630826787. The reversal of 630826783 is 387628036.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 630826783 - 2⁹ = 630826271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630826787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315413391 + 315413392.

It is an arithmetic number, because the mean of its divisors is an integer number (315413392).

Almost surely, 2^630826783 is an apocalyptic number.

630826783 is a deficient number, since it is larger than the sum of its proper divisors (1).

630826783 is an equidigital number, since it uses as much as digits as its factorization.

630826783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 630826783 is about 25116.2653075651. The cubic root of 630826783 is about 857.6367346490.

The spelling of 630826783 in words is "six hundred thirty million, eight hundred twenty-six thousand, seven hundred eighty-three".