422404277 has 2 divisors, whose sum is σ = 422404278. Its totient is φ = 422404276.

The previous prime is 422404249. The next prime is 422404303. The reversal of 422404277 is 772404224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252206161 + 170198116 = 15881^2 + 13046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422404277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422404237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211202138 + 211202139.

It is an arithmetic number, because the mean of its divisors is an integer number (211202139).

Almost surely, 2^422404277 is an apocalyptic number.

It is an amenable number.

422404277 is a deficient number, since it is larger than the sum of its proper divisors (1).

422404277 is an equidigital number, since it uses as much as digits as its factorization.

422404277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 422404277 is about 20552.4761768503. The cubic root of 422404277 is about 750.3135145562.

The spelling of 422404277 in words is "four hundred twenty-two million, four hundred four thousand, two hundred seventy-seven".