422971871 has 12 divisors (see below), whose sum is σ = 499376088. Its totient is φ = 357133392.

The previous prime is 422971859. The next prime is 422971907. The reversal of 422971871 is 178179224.

It is a de Polignac number, because none of the positive numbers 2^k-422971871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422973871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61136 + ... + 67701.

It is an arithmetic number, because the mean of its divisors is an integer number (41614674).

Almost surely, 2^422971871 is an apocalyptic number.

422971871 is a deficient number, since it is larger than the sum of its proper divisors (76404217).

422971871 is a wasteful number, since it uses less digits than its factorization.

422971871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128918 (or 128911 counting only the distinct ones).

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

The square root of 422971871 is about 20566.2799504432. The cubic root of 422971871 is about 750.6494351127.

The spelling of 422971871 in words is "four hundred twenty-two million, nine hundred seventy-one thousand, eight hundred seventy-one".