620538 has 8 divisors (see below), whose sum is σ = 1241088. Its totient is φ = 206844.

The previous prime is 620531. The next prime is 620549. The reversal of 620538 is 835026.

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

620538 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (620531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51706 + ... + 51717.

It is an arithmetic number, because the mean of its divisors is an integer number (155136).

2⁶²⁰⁵³⁸ is an apocalyptic number.

620538 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.

620538 is a wasteful number, since it uses less digits than its factorization.

620538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103428.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 620538 is about 787.7423436632. The cubic root of 620538 is about 85.2948468754.

The spelling of 620538 in words is "six hundred twenty thousand, five hundred thirty-eight".