422547473 has 2 divisors, whose sum is σ = 422547474. Its totient is φ = 422547472.

The previous prime is 422547457. The next prime is 422547481. The reversal of 422547473 is 374745224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248755984 + 173791489 = 15772^2 + 13183^2 .

It is a cyclic number.

It is not a de Polignac number, because 422547473 - 2⁴ = 422547457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (422547413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211273736 + 211273737.

It is an arithmetic number, because the mean of its divisors is an integer number (211273737).

Almost surely, 2^422547473 is an apocalyptic number.

It is an amenable number.

422547473 is a deficient number, since it is larger than the sum of its proper divisors (1).

422547473 is an equidigital number, since it uses as much as digits as its factorization.

422547473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 38.

The square root of 422547473 is about 20555.9595494835. The cubic root of 422547473 is about 750.3982909668.

The spelling of 422547473 in words is "four hundred twenty-two million, five hundred forty-seven thousand, four hundred seventy-three".