422087871 has 24 divisors (see below), whose sum is σ = 588798720. Its totient is φ = 268833936.

The previous prime is 422087867. The next prime is 422087879. The reversal of 422087871 is 178780224.

It is not a de Polignac number, because 422087871 - 2² = 422087867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422087879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259900 + ... + 261518.

It is an arithmetic number, because the mean of its divisors is an integer number (24533280).

Almost surely, 2^422087871 is an apocalyptic number.

422087871 is a deficient number, since it is larger than the sum of its proper divisors (166710849).

422087871 is a wasteful number, since it uses less digits than its factorization.

422087871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 422087871 is about 20544.7772195271. Note that the first 3 decimals coincide. The cubic root of 422087871 is about 750.1261245667.

The spelling of 422087871 in words is "four hundred twenty-two million, eighty-seven thousand, eight hundred seventy-one".