422769587 has 2 divisors, whose sum is σ = 422769588. Its totient is φ = 422769586.

The previous prime is 422769541. The next prime is 422769629. The reversal of 422769587 is 785967224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422769587 - 2²⁴ = 405992371 is a prime.

It is not a weakly prime, because it can be changed into another prime (422769887) 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, 211384793 + 211384794.

It is an arithmetic number, because the mean of its divisors is an integer number (211384794).

Almost surely, 2^422769587 is an apocalyptic number.

422769587 is a deficient number, since it is larger than the sum of its proper divisors (1).

422769587 is an equidigital number, since it uses as much as digits as its factorization.

422769587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 50.

The square root of 422769587 is about 20561.3615064762. The cubic root of 422769587 is about 750.5297513595.

The spelling of 422769587 in words is "four hundred twenty-two million, seven hundred sixty-nine thousand, five hundred eighty-seven".