422871457 has 2 divisors, whose sum is σ = 422871458. Its totient is φ = 422871456.

The previous prime is 422871443. The next prime is 422871469. The reversal of 422871457 is 754178224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354907921 + 67963536 = 18839^2 + 8244^2 .

It is a cyclic number.

It is not a de Polignac number, because 422871457 - 2⁷ = 422871329 is a prime.

It is not a weakly prime, because it can be changed into another prime (422821457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211435728 + 211435729.

It is an arithmetic number, because the mean of its divisors is an integer number (211435729).

Almost surely, 2^422871457 is an apocalyptic number.

It is an amenable number.

422871457 is a deficient number, since it is larger than the sum of its proper divisors (1).

422871457 is an equidigital number, since it uses as much as digits as its factorization.

422871457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125440, while the sum is 40.

The square root of 422871457 is about 20563.8385764915. The cubic root of 422871457 is about 750.5900287368.

The spelling of 422871457 in words is "four hundred twenty-two million, eight hundred seventy-one thousand, four hundred fifty-seven".