620444027 has 6 divisors (see below), whose sum is σ = 721741068. Its totient is φ = 531809124.

The previous prime is 620443997. The next prime is 620444047. The reversal of 620444027 is 720444026.

It is not a de Polignac number, because 620444027 - 2⁶ = 620443963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620444047) 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 5 ways as a sum of consecutive naturals, for example, 6331013 + ... + 6331110.

It is an arithmetic number, because the mean of its divisors is an integer number (120290178).

Almost surely, 2^620444027 is an apocalyptic number.

620444027 is a deficient number, since it is larger than the sum of its proper divisors (101297041).

620444027 is a wasteful number, since it uses less digits than its factorization.

620444027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12662137 (or 12662130 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 620444027 is about 24908.7138768745. The cubic root of 620444027 is about 852.9054103257.

Subtracting 620444027 from its reverse (720444026), we obtain a palindrome (99999999).

The spelling of 620444027 in words is "six hundred twenty million, four hundred forty-four thousand, twenty-seven".