420707271 has 8 divisors (see below), whose sum is σ = 569315584. Its totient is φ = 276285240.

The previous prime is 420707267. The next prime is 420707281. The reversal of 420707271 is 172707024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420707271 - 2² = 420707267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420707251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046335 + ... + 1046736.

It is an arithmetic number, because the mean of its divisors is an integer number (71164448).

Almost surely, 2^420707271 is an apocalyptic number.

420707271 is a deficient number, since it is larger than the sum of its proper divisors (148608313).

420707271 is a wasteful number, since it uses less digits than its factorization.

420707271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093141.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 420707271 is about 20511.1499190075. The cubic root of 420707271 is about 749.3073729985.

The spelling of 420707271 in words is "four hundred twenty million, seven hundred seven thousand, two hundred seventy-one".