422443477 has 2 divisors, whose sum is σ = 422443478. Its totient is φ = 422443476.

The previous prime is 422443453. The next prime is 422443513. The reversal of 422443477 is 774344224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245047716 + 177395761 = 15654^2 + 13319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422443477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422443447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211221738 + 211221739.

It is an arithmetic number, because the mean of its divisors is an integer number (211221739).

Almost surely, 2^422443477 is an apocalyptic number.

It is an amenable number.

422443477 is a deficient number, since it is larger than the sum of its proper divisors (1).

422443477 is an equidigital number, since it uses as much as digits as its factorization.

422443477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 37.

The square root of 422443477 is about 20553.4298111045. The cubic root of 422443477 is about 750.3367240592.

The spelling of 422443477 in words is "four hundred twenty-two million, four hundred forty-three thousand, four hundred seventy-seven".