230621 has 8 divisors (see below), whose sum is σ = 248064. Its totient is φ = 213840.

The previous prime is 230611. The next prime is 230647. The reversal of 230621 is 126032.

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 230621 - 2¹⁴ = 214237 is a prime.

It is an Ulam number.

It is a Duffinian number.

230621 is a modest number, since divided by 621 gives 230 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 230596 and 230605.

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 230621.

It is not an unprimeable number, because it can be changed into a prime (230611) 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, 716 + ... + 986.

It is an arithmetic number, because the mean of its divisors is an integer number (31008).

2²³⁰⁶²¹ is an apocalyptic number.

It is an amenable number.

230621 is a deficient number, since it is larger than the sum of its proper divisors (17443).

230621 is a wasteful number, since it uses less digits than its factorization.

230621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

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

The square root of 230621 is about 480.2301531558. The cubic root of 230621 is about 61.3243495296.

Adding to 230621 its reverse (126032), we get a palindrome (356653).

The spelling of 230621 in words is "two hundred thirty thousand, six hundred twenty-one".