620522 has 16 divisors (see below), whose sum is σ = 1075200. Its totient is φ = 263088.

The previous prime is 620519. The next prime is 620531. The reversal of 620522 is 225026.

It is a self number, because there is not a number n which added to its sum of digits gives 620522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604 + ... + 1952.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2⁶²⁰⁵²² is an apocalyptic number.

620522 is a deficient number, since it is larger than the sum of its proper divisors (454678).

620522 is a wasteful number, since it uses less digits than its factorization.

620522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 620522 is about 787.7321879928. The cubic root of 620522 is about 85.2941137861.

Adding to 620522 its reverse (225026), we get a palindrome (845548).

The spelling of 620522 in words is "six hundred twenty thousand, five hundred twenty-two".