421114717 has 2 divisors, whose sum is σ = 421114718. Its totient is φ = 421114716.

The previous prime is 421114711. The next prime is 421114721. The reversal of 421114717 is 717411124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420824196 + 290521 = 20514^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 421114717 - 2¹⁵ = 421081949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421114711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210557358 + 210557359.

It is an arithmetic number, because the mean of its divisors is an integer number (210557359).

Almost surely, 2^421114717 is an apocalyptic number.

It is an amenable number.

421114717 is a deficient number, since it is larger than the sum of its proper divisors (1).

421114717 is an equidigital number, since it uses as much as digits as its factorization.

421114717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 28.

The square root of 421114717 is about 20521.0798205163. The cubic root of 421114717 is about 749.5491910086.

The spelling of 421114717 in words is "four hundred twenty-one million, one hundred fourteen thousand, seven hundred seventeen".