428437271 has 8 divisors (see below), whose sum is σ = 444128400. Its totient is φ = 412807360.

The previous prime is 428437241. The next prime is 428437279. The reversal of 428437271 is 172734824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428437271 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 (428437279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806 + ... + 29283.

It is an arithmetic number, because the mean of its divisors is an integer number (55516050).

Almost surely, 2^428437271 is an apocalyptic number.

428437271 is a deficient number, since it is larger than the sum of its proper divisors (15691129).

428437271 is a wasteful number, since it uses less digits than its factorization.

428437271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30609.

The product of its digits is 75264, while the sum is 38.

The square root of 428437271 is about 20698.7263134716. The cubic root of 428437271 is about 753.8687624407.

The spelling of 428437271 in words is "four hundred twenty-eight million, four hundred thirty-seven thousand, two hundred seventy-one".