633906769 has 2 divisors, whose sum is σ = 633906770. Its totient is φ = 633906768.

The previous prime is 633906751. The next prime is 633906827. The reversal of 633906769 is 967609336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 630612544 + 3294225 = 25112^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 633906769 - 2⁹ = 633906257 is a prime.

It is a super-2 number, since 2×633906769² = 803675583568038722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (633906269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316953384 + 316953385.

It is an arithmetic number, because the mean of its divisors is an integer number (316953385).

Almost surely, 2^633906769 is an apocalyptic number.

It is an amenable number.

633906769 is a deficient number, since it is larger than the sum of its proper divisors (1).

633906769 is an equidigital number, since it uses as much as digits as its factorization.

633906769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 49.

The square root of 633906769 is about 25177.5052179520. The cubic root of 633906769 is about 859.0302612662.

The spelling of 633906769 in words is "six hundred thirty-three million, nine hundred six thousand, seven hundred sixty-nine".