620231 has 4 divisors (see below), whose sum is σ = 637032. Its totient is φ = 603432.

The previous prime is 620227. The next prime is 620233. The reversal of 620231 is 132026.

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

It is a cyclic number.

It is not a de Polignac number, because 620231 - 2² = 620227 is a prime.

It is a super-2 number, since 2×620231² = 769372986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620231.

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, 8345 + ... + 8418.

It is an arithmetic number, because the mean of its divisors is an integer number (159258).

2⁶²⁰²³¹ is an apocalyptic number.

620231 is a deficient number, since it is larger than the sum of its proper divisors (16801).

620231 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 14 representation: 620231 = (122063)₁₄.

620231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16800.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 620231 is about 787.5474588874. The cubic root of 620231 is about 85.2807785253.

Adding to 620231 its reverse (132026), we get a palindrome (752257).

The spelling of 620231 in words is "six hundred twenty thousand, two hundred thirty-one".