620117103 has 4 divisors (see below), whose sum is σ = 826822808. Its totient is φ = 413411400.

The previous prime is 620117089. The next prime is 620117129. The reversal of 620117103 is 301711026.

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

It is a de Polignac number, because none of the positive numbers 2^k-620117103 is a prime.

It is a super-2 number, since 2×620117103² = 769090442866225218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620117103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620117203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103352848 + ... + 103352853.

It is an arithmetic number, because the mean of its divisors is an integer number (206705702).

Almost surely, 2^620117103 is an apocalyptic number.

620117103 is a deficient number, since it is larger than the sum of its proper divisors (206705705).

620117103 is a wasteful number, since it uses less digits than its factorization.

620117103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206705704.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 620117103 is about 24902.1505697801. The cubic root of 620117103 is about 852.7555798682.

Adding to 620117103 its reverse (301711026), we get a palindrome (921828129).

The spelling of 620117103 in words is "six hundred twenty million, one hundred seventeen thousand, one hundred three".