620395 has 8 divisors (see below), whose sum is σ = 751104. Its totient is φ = 491904.

The previous prime is 620393. The next prime is 620401. The reversal of 620395 is 593026.

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 620395 - 2¹ = 620393 is a prime.

It is a Duffinian number.

620395 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (620393) 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 7 ways as a sum of consecutive naturals, for example, 147 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (93888).

2⁶²⁰³⁹⁵ is an apocalyptic number.

620395 is a deficient number, since it is larger than the sum of its proper divisors (130709).

620395 is a wasteful number, since it uses less digits than its factorization.

620395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 620395 is about 787.6515727147. The cubic root of 620395 is about 85.2882944429.

The spelling of 620395 in words is "six hundred twenty thousand, three hundred ninety-five".