620501 has 4 divisors (see below), whose sum is σ = 709152. Its totient is φ = 531852.

The previous prime is 620491. The next prime is 620507. The reversal of 620501 is 105026.

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 not a de Polignac number, because 620501 - 2⁶ = 620437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620501.

It is not an unprimeable number, because it can be changed into a prime (620507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44315 + ... + 44328.

It is an arithmetic number, because the mean of its divisors is an integer number (177288).

2⁶²⁰⁵⁰¹ is an apocalyptic number.

It is an amenable number.

620501 is a deficient number, since it is larger than the sum of its proper divisors (88651).

620501 is an equidigital number, since it uses as much as digits as its factorization.

620501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88650.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 620501 is about 787.7188584768. The cubic root of 620501 is about 85.2931515873.

Adding to 620501 its reverse (105026), we get a palindrome (725527).

The spelling of 620501 in words is "six hundred twenty thousand, five hundred one".