620109604 has 9 divisors (see below), whose sum is σ = 1085278971. Its totient is φ = 310029900.

The previous prime is 620109583. The next prime is 620109613. The reversal of 620109604 is 406901026.

The square root of 620109604 is 24902.

It is a perfect power (a square), and thus also a powerful number.

620109604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 43579 + ... + 56029.

Almost surely, 2^620109604 is an apocalyptic number.

620109604 is the 24902-nd square number.

It is an amenable number.

620109604 is a deficient number, since it is larger than the sum of its proper divisors (465169367).

620109604 is an frugal number, since it uses more digits than its factorization.

620109604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24906 (or 12453 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The cubic root of 620109604 is about 852.7521424315.

It can be divided in two parts, 620 and 109604, that added together give a square (110224 = 332²).

The spelling of 620109604 in words is "six hundred twenty million, one hundred nine thousand, six hundred four".