620800641 has 24 divisors (see below), whose sum is σ = 918440640. Its totient is φ = 403956000.

The previous prime is 620800633. The next prime is 620800657. The reversal of 620800641 is 146008026.

It is not a de Polignac number, because 620800641 - 2³ = 620800633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620800601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59730 + ... + 69348.

It is an arithmetic number, because the mean of its divisors is an integer number (38268360).

Almost surely, 2^620800641 is an apocalyptic number.

It is an amenable number.

620800641 is a deficient number, since it is larger than the sum of its proper divisors (297639999).

620800641 is a wasteful number, since it uses less digits than its factorization.

620800641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797 (or 9794 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 620800641 is about 24915.8712671261. The cubic root of 620800641 is about 853.0687878110.

Adding to 620800641 its reverse (146008026), we get a palindrome (766808667).

The spelling of 620800641 in words is "six hundred twenty million, eight hundred thousand, six hundred forty-one".