620306 has 8 divisors (see below), whose sum is σ = 950400. Its totient is φ = 303508.

The previous prime is 620303. The next prime is 620311. The reversal of 620306 is 603026.

620306 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 an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620306.

It is not an unprimeable number, because it can be changed into a prime (620303) 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, 3206 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2⁶²⁰³⁰⁶ is an apocalyptic number.

620306 is a deficient number, since it is larger than the sum of its proper divisors (330094).

620306 is a wasteful number, since it uses less digits than its factorization.

620306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6648.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 620306 is about 787.5950736260. The cubic root of 620306 is about 85.2842158471.

The spelling of 620306 in words is "six hundred twenty thousand, three hundred six".