420881701 has 2 divisors, whose sum is σ = 420881702. Its totient is φ = 420881700.

The previous prime is 420881693. The next prime is 420881707. The reversal of 420881701 is 107188024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353477601 + 67404100 = 18801^2 + 8210^2 .

It is a cyclic number.

It is not a de Polignac number, because 420881701 - 2³ = 420881693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420881707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210440850 + 210440851.

It is an arithmetic number, because the mean of its divisors is an integer number (210440851).

Almost surely, 2^420881701 is an apocalyptic number.

It is an amenable number.

420881701 is a deficient number, since it is larger than the sum of its proper divisors (1).

420881701 is an equidigital number, since it uses as much as digits as its factorization.

420881701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 420881701 is about 20515.4015559043. The cubic root of 420881701 is about 749.4109157979.

The spelling of 420881701 in words is "four hundred twenty million, eight hundred eighty-one thousand, seven hundred one".