632764819 has 2 divisors, whose sum is σ = 632764820. Its totient is φ = 632764818.

The previous prime is 632764757. The next prime is 632764829. The reversal of 632764819 is 918467236.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632764819 is a prime.

It is a super-2 number, since 2×632764819² = 800782632328205522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (632764829) 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, 316382409 + 316382410.

It is an arithmetic number, because the mean of its divisors is an integer number (316382410).

Almost surely, 2^632764819 is an apocalyptic number.

632764819 is a deficient number, since it is larger than the sum of its proper divisors (1).

632764819 is an equidigital number, since it uses as much as digits as its factorization.

632764819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 632764819 is about 25154.8170138445. The cubic root of 632764819 is about 858.5141184619.

The spelling of 632764819 in words is "six hundred thirty-two million, seven hundred sixty-four thousand, eight hundred nineteen".