620243 has 4 divisors (see below), whose sum is σ = 667968. Its totient is φ = 572520.

The previous prime is 620239. The next prime is 620251. The reversal of 620243 is 342026.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 620243 - 2² = 620239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620233) 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, 23843 + ... + 23868.

It is an arithmetic number, because the mean of its divisors is an integer number (166992).

2⁶²⁰²⁴³ is an apocalyptic number.

620243 is a deficient number, since it is larger than the sum of its proper divisors (47725).

620243 is a wasteful number, since it uses less digits than its factorization.

620243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47724.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 620243 is about 787.5550774390. Note that the first 3 decimals coincide. The cubic root of 620243 is about 85.2813285154.

Adding to 620243 its reverse (342026), we get a palindrome (962269).

The spelling of 620243 in words is "six hundred twenty thousand, two hundred forty-three".