420798113 has 2 divisors, whose sum is σ = 420798114. Its totient is φ = 420798112.

The previous prime is 420798109. The next prime is 420798167. The reversal of 420798113 is 311897024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420373009 + 425104 = 20503^2 + 652^2 .

It is a cyclic number.

It is not a de Polignac number, because 420798113 - 2² = 420798109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (420798173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210399056 + 210399057.

It is an arithmetic number, because the mean of its divisors is an integer number (210399057).

Almost surely, 2^420798113 is an apocalyptic number.

It is an amenable number.

420798113 is a deficient number, since it is larger than the sum of its proper divisors (1).

420798113 is an equidigital number, since it uses as much as digits as its factorization.

420798113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 420798113 is about 20513.3642535787. The cubic root of 420798113 is about 749.3613009799.

The spelling of 420798113 in words is "four hundred twenty million, seven hundred ninety-eight thousand, one hundred thirteen".