620017 has 4 divisors (see below), whose sum is σ = 634480. Its totient is φ = 605556.

The previous prime is 620003. The next prime is 620029. The reversal of 620017 is 710026.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620017 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (620117) 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, 7167 + ... + 7252.

It is an arithmetic number, because the mean of its divisors is an integer number (158620).

2⁶²⁰⁰¹⁷ is an apocalyptic number.

It is an amenable number.

620017 is a deficient number, since it is larger than the sum of its proper divisors (14463).

620017 is a wasteful number, since it uses less digits than its factorization.

620017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14462.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 620017 is about 787.4115823380. The cubic root of 620017 is about 85.2709691769.

Subtracting 620017 from its reverse (710026), we obtain a palindrome (90009).

The spelling of 620017 in words is "six hundred twenty thousand, seventeen".