422974847 has 2 divisors, whose sum is σ = 422974848. Its totient is φ = 422974846.

The previous prime is 422974843. The next prime is 422974879. The reversal of 422974847 is 748479224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422974847 - 2² = 422974843 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422974843) 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, 211487423 + 211487424.

It is an arithmetic number, because the mean of its divisors is an integer number (211487424).

Almost surely, 2^422974847 is an apocalyptic number.

422974847 is a deficient number, since it is larger than the sum of its proper divisors (1).

422974847 is an equidigital number, since it uses as much as digits as its factorization.

422974847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 47.

The square root of 422974847 is about 20566.3523017574. The cubic root of 422974847 is about 750.6511956139.

The spelling of 422974847 in words is "four hundred twenty-two million, nine hundred seventy-four thousand, eight hundred forty-seven".