422625277 has 2 divisors, whose sum is σ = 422625278. Its totient is φ = 422625276.

The previous prime is 422625223. The next prime is 422625361. The reversal of 422625277 is 772526224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347039641 + 75585636 = 18629^2 + 8694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422625277 is a prime.

It is a super-4 number, since 4×422625277⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422625977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211312638 + 211312639.

It is an arithmetic number, because the mean of its divisors is an integer number (211312639).

Almost surely, 2^422625277 is an apocalyptic number.

It is an amenable number.

422625277 is a deficient number, since it is larger than the sum of its proper divisors (1).

422625277 is an equidigital number, since it uses as much as digits as its factorization.

422625277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 37.

The square root of 422625277 is about 20557.8519549101. The cubic root of 422625277 is about 750.4443452836. Note that the first 3 decimals are identical.

The spelling of 422625277 in words is "four hundred twenty-two million, six hundred twenty-five thousand, two hundred seventy-seven".