620202117 has 4 divisors (see below), whose sum is σ = 826936160. Its totient is φ = 413468076.

The previous prime is 620202097. The next prime is 620202119. The reversal of 620202117 is 711202026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 620202117 - 2⁶ = 620202053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620202093 and 620202102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620202119) 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, 103367017 + ... + 103367022.

It is an arithmetic number, because the mean of its divisors is an integer number (206734040).

Almost surely, 2^620202117 is an apocalyptic number.

It is an amenable number.

620202117 is a deficient number, since it is larger than the sum of its proper divisors (206734043).

620202117 is a wasteful number, since it uses less digits than its factorization.

620202117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206734042.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 620202117 is about 24903.8574722873. The cubic root of 620202117 is about 852.7945471588.

Subtracting 620202117 from its reverse (711202026), we obtain a palindrome (90999909).

The spelling of 620202117 in words is "six hundred twenty million, two hundred two thousand, one hundred seventeen".