620023603 has 4 divisors (see below), whose sum is σ = 621069768. Its totient is φ = 618977440.

The previous prime is 620023571. The next prime is 620023619. The reversal of 620023603 is 306320026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620023603 - 2⁵ = 620023571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620023633) 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 3 ways as a sum of consecutive naturals, for example, 522193 + ... + 523378.

It is an arithmetic number, because the mean of its divisors is an integer number (155267442).

Almost surely, 2^620023603 is an apocalyptic number.

620023603 is a deficient number, since it is larger than the sum of its proper divisors (1046165).

620023603 is a wasteful number, since it uses less digits than its factorization.

620023603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046164.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 620023603 is about 24900.2731511122. The cubic root of 620023603 is about 852.7127187946.

Adding to 620023603 its reverse (306320026), we get a palindrome (926343629).

The spelling of 620023603 in words is "six hundred twenty million, twenty-three thousand, six hundred three".