420262771 has 2 divisors, whose sum is σ = 420262772. Its totient is φ = 420262770.

The previous prime is 420262741. The next prime is 420262783. The reversal of 420262771 is 177262024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420262771 - 2⁷ = 420262643 is a prime.

It is not a weakly prime, because it can be changed into another prime (420262741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210131385 + 210131386.

It is an arithmetic number, because the mean of its divisors is an integer number (210131386).

Almost surely, 2^420262771 is an apocalyptic number.

420262771 is a deficient number, since it is larger than the sum of its proper divisors (1).

420262771 is an equidigital number, since it uses as much as digits as its factorization.

420262771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 420262771 is about 20500.3114854385. The cubic root of 420262771 is about 749.0433854072.

The spelling of 420262771 in words is "four hundred twenty million, two hundred sixty-two thousand, seven hundred seventy-one".