620599 has 4 divisors (see below), whose sum is σ = 709264. Its totient is φ = 531936.

The previous prime is 620579. The next prime is 620603. The reversal of 620599 is 995026.

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 620599 - 2⁵ = 620567 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 620599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44322 + ... + 44335.

It is an arithmetic number, because the mean of its divisors is an integer number (177316).

2⁶²⁰⁵⁹⁹ is an apocalyptic number.

620599 is a deficient number, since it is larger than the sum of its proper divisors (88665).

620599 is an equidigital number, since it uses as much as digits as its factorization.

620599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88664.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 620599 is about 787.7810609554. The cubic root of 620599 is about 85.2976416627.

The spelling of 620599 in words is "six hundred twenty thousand, five hundred ninety-nine".