620806 has 24 divisors (see below), whose sum is σ = 1072440. Its totient is φ = 267840.

The previous prime is 620777. The next prime is 620813. The reversal of 620806 is 608026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20011 + ... + 20041.

It is an arithmetic number, because the mean of its divisors is an integer number (44685).

2⁶²⁰⁸⁰⁶ is an apocalyptic number.

620806 is a deficient number, since it is larger than the sum of its proper divisors (451634).

620806 is a wasteful number, since it uses less digits than its factorization.

620806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 620806 is about 787.9124316826. The cubic root of 620806 is about 85.3071242481.

The spelling of 620806 in words is "six hundred twenty thousand, eight hundred six".