620228889 has 12 divisors (see below), whose sum is σ = 1023870016. Its totient is φ = 354416472.

The previous prime is 620228831. The next prime is 620228911. The reversal of 620228889 is 988822026.

It is not a de Polignac number, because 620228889 - 2⁸ = 620228633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620228809) 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 11 ways as a sum of consecutive naturals, for example, 4922389 + ... + 4922514.

Almost surely, 2^620228889 is an apocalyptic number.

It is an amenable number.

620228889 is a deficient number, since it is larger than the sum of its proper divisors (403641127).

620228889 is a wasteful number, since it uses less digits than its factorization.

620228889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9844916 (or 9844913 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 620228889 is about 24904.3949735785. The cubic root of 620228889 is about 852.8068177216.

The spelling of 620228889 in words is "six hundred twenty million, two hundred twenty-eight thousand, eight hundred eighty-nine".