620123 has 4 divisors (see below), whose sum is σ = 708720. Its totient is φ = 531528.

The previous prime is 620117. The next prime is 620159. The reversal of 620123 is 321026.

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

It is a cyclic number.

It is not a de Polignac number, because 620123 - 2⁸ = 619867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620098 and 620107.

It is not an unprimeable number, because it can be changed into a prime (620183) 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, 44288 + ... + 44301.

It is an arithmetic number, because the mean of its divisors is an integer number (177180).

2⁶²⁰¹²³ is an apocalyptic number.

620123 is a deficient number, since it is larger than the sum of its proper divisors (88597).

620123 is an equidigital number, since it uses as much as digits as its factorization.

620123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88596.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 620123 is about 787.4788886059. The cubic root of 620123 is about 85.2758282951.

Adding to 620123 its reverse (321026), we get a palindrome (941149).

The spelling of 620123 in words is "six hundred twenty thousand, one hundred twenty-three".