620508 has 48 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 173184.

The previous prime is 620507. The next prime is 620519. The reversal of 620508 is 805026.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6928 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2⁶²⁰⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846720).

620508 is an abundant number, since it is smaller than the sum of its proper divisors (1072932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620508 is a wasteful number, since it uses less digits than its factorization.

620508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 620508 is about 787.7233016739. The cubic root of 620508 is about 85.2934723226.

It can be divided in two parts, 620 and 508, that added together give a triangular number (1128 = T₄₇).

The spelling of 620508 in words is "six hundred twenty thousand, five hundred eight".