620230903 has 12 divisors (see below), whose sum is σ = 663801264. Its totient is φ = 578080800.

The previous prime is 620230867. The next prime is 620230931. The reversal of 620230903 is 309032026.

It is a de Polignac number, because none of the positive numbers 2^k-620230903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620230003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 764368 + ... + 765178.

It is an arithmetic number, because the mean of its divisors is an integer number (55316772).

Almost surely, 2^620230903 is an apocalyptic number.

620230903 is a deficient number, since it is larger than the sum of its proper divisors (43570361).

620230903 is an frugal number, since it uses more digits than its factorization.

620230903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 620230903 is about 24904.4354081758. The cubic root of 620230903 is about 852.8077407954.

Adding to 620230903 its reverse (309032026), we get a palindrome (929262929).

The spelling of 620230903 in words is "six hundred twenty million, two hundred thirty thousand, nine hundred three".