422987711 has 2 divisors, whose sum is σ = 422987712. Its totient is φ = 422987710.

The previous prime is 422987629. The next prime is 422987713. The reversal of 422987711 is 117789224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422987711 - 2²⁶ = 355878847 is a prime.

Together with 422987713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422987713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211493855 + 211493856.

It is an arithmetic number, because the mean of its divisors is an integer number (211493856).

Almost surely, 2^422987711 is an apocalyptic number.

422987711 is a deficient number, since it is larger than the sum of its proper divisors (1).

422987711 is an equidigital number, since it uses as much as digits as its factorization.

422987711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 41.

The square root of 422987711 is about 20566.6650432198. The cubic root of 422987711 is about 750.6588054274.

The spelling of 422987711 in words is "four hundred twenty-two million, nine hundred eighty-seven thousand, seven hundred eleven".