620284 has 12 divisors (see below), whose sum is σ = 1240624. Its totient is φ = 265824.

The previous prime is 620261. The next prime is 620297. The reversal of 620284 is 482026.

620284 is an admirable number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 11049 + ... + 11104.

2⁶²⁰²⁸⁴ is an apocalyptic number.

It is an amenable number.

620284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

620284 is a wasteful number, since it uses less digits than its factorization.

620284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22164 (or 22162 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 620284 is about 787.5811069344. The cubic root of 620284 is about 85.2832075948.

The spelling of 620284 in words is "six hundred twenty thousand, two hundred eighty-four".