620579 has 2 divisors, whose sum is σ = 620580. Its totient is φ = 620578.

The previous prime is 620569. The next prime is 620603. The reversal of 620579 is 975026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620579 - 2¹⁶ = 555043 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (620519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310289 + 310290.

It is an arithmetic number, because the mean of its divisors is an integer number (310290).

2⁶²⁰⁵⁷⁹ is an apocalyptic number.

620579 is a deficient number, since it is larger than the sum of its proper divisors (1).

620579 is an equidigital number, since it uses as much as digits as its factorization.

620579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 620579 is about 787.7683669709. The cubic root of 620579 is about 85.2967253592.

The spelling of 620579 in words is "six hundred twenty thousand, five hundred seventy-nine".