422008931 has 2 divisors, whose sum is σ = 422008932. Its totient is φ = 422008930.

The previous prime is 422008927. The next prime is 422008997. The reversal of 422008931 is 139800224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422008931 - 2² = 422008927 is a prime.

It is a super-2 number, since 2×422008931² = 356183075687525522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 422008894 and 422008903.

It is not a weakly prime, because it can be changed into another prime (422008831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211004465 + 211004466.

It is an arithmetic number, because the mean of its divisors is an integer number (211004466).

Almost surely, 2^422008931 is an apocalyptic number.

422008931 is a deficient number, since it is larger than the sum of its proper divisors (1).

422008931 is an equidigital number, since it uses as much as digits as its factorization.

422008931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 422008931 is about 20542.8559601629. The cubic root of 422008931 is about 750.0793581213.

The spelling of 422008931 in words is "four hundred twenty-two million, eight thousand, nine hundred thirty-one".