421727263 has 2 divisors, whose sum is σ = 421727264. Its totient is φ = 421727262.

The previous prime is 421727261. The next prime is 421727297. The reversal of 421727263 is 362727124.

It is an a-pointer prime, because the next prime (421727297) can be obtained adding 421727263 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421727263 - 2¹ = 421727261 is a prime.

Together with 421727261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421727261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210863631 + 210863632.

It is an arithmetic number, because the mean of its divisors is an integer number (210863632).

Almost surely, 2^421727263 is an apocalyptic number.

421727263 is a deficient number, since it is larger than the sum of its proper divisors (1).

421727263 is an equidigital number, since it uses as much as digits as its factorization.

421727263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 34.

The square root of 421727263 is about 20535.9991965329. Note that the first 3 decimals coincide. The cubic root of 421727263 is about 749.9124419267.

The spelling of 421727263 in words is "four hundred twenty-one million, seven hundred twenty-seven thousand, two hundred sixty-three".