419826427 has 2 divisors, whose sum is σ = 419826428. Its totient is φ = 419826426.

The previous prime is 419826403. The next prime is 419826437. The reversal of 419826427 is 724628914.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-419826427 is a prime.

It is not a weakly prime, because it can be changed into another prime (419826437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209913213 + 209913214.

It is an arithmetic number, because the mean of its divisors is an integer number (209913214).

Almost surely, 2^419826427 is an apocalyptic number.

419826427 is a deficient number, since it is larger than the sum of its proper divisors (1).

419826427 is an equidigital number, since it uses as much as digits as its factorization.

419826427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 419826427 is about 20489.6663467222. Note that the first 3 decimals coincide. The cubic root of 419826427 is about 748.7840605351.

It can be divided in two parts, 4198 and 26427, that added together give a square (30625 = 175²).

The spelling of 419826427 in words is "four hundred nineteen million, eight hundred twenty-six thousand, four hundred twenty-seven".