620730271 has 8 divisors (see below), whose sum is σ = 711010944. Its totient is φ = 530850840.

The previous prime is 620730259. The next prime is 620730287. The reversal of 620730271 is 172037026.

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

It is a cyclic number.

It is not a de Polignac number, because 620730271 - 2¹⁵ = 620697503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620730211) 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, 96985 + ... + 103186.

It is an arithmetic number, because the mean of its divisors is an integer number (88876368).

Almost surely, 2^620730271 is an apocalyptic number.

620730271 is a deficient number, since it is larger than the sum of its proper divisors (90280673).

620730271 is a wasteful number, since it uses less digits than its factorization.

620730271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200621.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 620730271 is about 24914.4590750030. The cubic root of 620730271 is about 853.0365537813.

Adding to 620730271 its reverse (172037026), we get a palindrome (792767297).

The spelling of 620730271 in words is "six hundred twenty million, seven hundred thirty thousand, two hundred seventy-one".