496447643 has 2 divisors, whose sum is σ = 496447644. Its totient is φ = 496447642.

The previous prime is 496447631. The next prime is 496447667. The reversal of 496447643 is 346744694.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 496447643 - 2¹⁸ = 496185499 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (496447543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248223821 + 248223822.

It is an arithmetic number, because the mean of its divisors is an integer number (248223822).

Almost surely, 2^496447643 is an apocalyptic number.

496447643 is a deficient number, since it is larger than the sum of its proper divisors (1).

496447643 is an equidigital number, since it uses as much as digits as its factorization.

496447643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 47.

The square root of 496447643 is about 22281.1050668498. The cubic root of 496447643 is about 791.8163850737.

The spelling of 496447643 in words is "four hundred ninety-six million, four hundred forty-seven thousand, six hundred forty-three".