422087867 has 2 divisors, whose sum is σ = 422087868. Its totient is φ = 422087866.

The previous prime is 422087863. The next prime is 422087879. The reversal of 422087867 is 768780224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422087867 - 2² = 422087863 is a prime.

It is not a weakly prime, because it can be changed into another prime (422087863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211043933 + 211043934.

It is an arithmetic number, because the mean of its divisors is an integer number (211043934).

Almost surely, 2^422087867 is an apocalyptic number.

422087867 is a deficient number, since it is larger than the sum of its proper divisors (1).

422087867 is an equidigital number, since it uses as much as digits as its factorization.

422087867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 422087867 is about 20544.7771221788. Note that the first 3 decimals coincide. The cubic root of 422087867 is about 750.1261221971.

The spelling of 422087867 in words is "four hundred twenty-two million, eighty-seven thousand, eight hundred sixty-seven".