6230621 has 4 divisors (see below), whose sum is σ = 6445500. Its totient is φ = 6015744.

The previous prime is 6230617. The next prime is 6230629. The reversal of 6230621 is 1260326.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1260326 = 2 ⋅630163.

It can be written as a sum of positive squares in 2 ways, for example, as 4778596 + 1452025 = 2186^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 6230621 - 2² = 6230617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6230593 and 6230602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6230629) 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 3 ways as a sum of consecutive naturals, for example, 107396 + ... + 107453.

It is an arithmetic number, because the mean of its divisors is an integer number (1611375).

Almost surely, 2^6230621 is an apocalyptic number.

It is an amenable number.

6230621 is a deficient number, since it is larger than the sum of its proper divisors (214879).

6230621 is a wasteful number, since it uses less digits than its factorization.

6230621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214878.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 6230621 is about 2496.1211909681. The cubic root of 6230621 is about 184.0109969010.

Adding to 6230621 its reverse (1260326), we get a palindrome (7490947).

The spelling of 6230621 in words is "six million, two hundred thirty thousand, six hundred twenty-one".