620039 has 8 divisors (see below), whose sum is σ = 716448. Its totient is φ = 525600.

The previous prime is 620033. The next prime is 620051. The reversal of 620039 is 930026.

It is a happy number.

620039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 620039 - 2¹⁶ = 554503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (89556).

2⁶²⁰⁰³⁹ is an apocalyptic number.

620039 is a deficient number, since it is larger than the sum of its proper divisors (96409).

620039 is a wasteful number, since it uses less digits than its factorization.

620039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 620039 is about 787.4255520365. The cubic root of 620039 is about 85.2719777187.

The spelling of 620039 in words is "six hundred twenty thousand, thirty-nine".