620558 has 8 divisors (see below), whose sum is σ = 960960. Its totient is φ = 300240.

The previous prime is 620549. The next prime is 620561. The reversal of 620558 is 855026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×620558³ = 716916194732343336, which contains 333 as substring.

620558 is a modest number, since divided by 558 gives 62 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4943 + ... + 5066.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2⁶²⁰⁵⁵⁸ is an apocalyptic number.

620558 is a deficient number, since it is larger than the sum of its proper divisors (340402).

620558 is a wasteful number, since it uses less digits than its factorization.

620558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 620558 is about 787.7550380670. The cubic root of 620558 is about 85.2957632193.

The spelling of 620558 in words is "six hundred twenty thousand, five hundred fifty-eight".