628472271 has 8 divisors (see below), whose sum is σ = 957672064. Its totient is φ = 359127000.

The previous prime is 628472233. The next prime is 628472279. The reversal of 628472271 is 172274826.

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

It is not a de Polignac number, because 628472271 - 2²³ = 620083663 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 (628472279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14963605 + ... + 14963646.

It is an arithmetic number, because the mean of its divisors is an integer number (119709008).

Almost surely, 2^628472271 is an apocalyptic number.

628472271 is a deficient number, since it is larger than the sum of its proper divisors (329199793).

628472271 is a wasteful number, since it uses less digits than its factorization.

628472271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29927261.

The product of its digits is 75264, while the sum is 39.

The square root of 628472271 is about 25069.3492336758. The cubic root of 628472271 is about 856.5683835191.

The spelling of 628472271 in words is "six hundred twenty-eight million, four hundred seventy-two thousand, two hundred seventy-one".