422630647 has 2 divisors, whose sum is σ = 422630648. Its totient is φ = 422630646.

The previous prime is 422630641. The next prime is 422630669. The reversal of 422630647 is 746036224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422630647 - 2⁷ = 422630519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422630641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211315323 + 211315324.

It is an arithmetic number, because the mean of its divisors is an integer number (211315324).

Almost surely, 2^422630647 is an apocalyptic number.

422630647 is a deficient number, since it is larger than the sum of its proper divisors (1).

422630647 is an equidigital number, since it uses as much as digits as its factorization.

422630647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 422630647 is about 20557.9825615258. The cubic root of 422630647 is about 750.4475237251.

The spelling of 422630647 in words is "four hundred twenty-two million, six hundred thirty thousand, six hundred forty-seven".