496643789 has 2 divisors, whose sum is σ = 496643790. Its totient is φ = 496643788.

The previous prime is 496643767. The next prime is 496643837. The reversal of 496643789 is 987346694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490268164 + 6375625 = 22142^2 + 2525^2 .

It is a cyclic number.

It is not a de Polignac number, because 496643789 - 2²⁴ = 479866573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (496643089) 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, 248321894 + 248321895.

It is an arithmetic number, because the mean of its divisors is an integer number (248321895).

Almost surely, 2^496643789 is an apocalyptic number.

It is an amenable number.

496643789 is a deficient number, since it is larger than the sum of its proper divisors (1).

496643789 is an equidigital number, since it uses as much as digits as its factorization.

496643789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 56.

The square root of 496643789 is about 22285.5062540657. The cubic root of 496643789 is about 791.9206533142.

The spelling of 496643789 in words is "four hundred ninety-six million, six hundred forty-three thousand, seven hundred eighty-nine".