6124621 has 4 divisors (see below), whose sum is σ = 6274044. Its totient is φ = 5975200.

The previous prime is 6124609. The next prime is 6124649. The reversal of 6124621 is 1264216.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 2924100 = 1789^2 + 1710^2 .

It is a cyclic number.

It is not a de Polignac number, because 6124621 - 2⁵ = 6124589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6124592 and 6124601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6124681) 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, 74650 + ... + 74731.

It is an arithmetic number, because the mean of its divisors is an integer number (1568511).

Almost surely, 2^6124621 is an apocalyptic number.

It is an amenable number.

6124621 is a deficient number, since it is larger than the sum of its proper divisors (149423).

6124621 is a wasteful number, since it uses less digits than its factorization.

6124621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149422.

The product of its digits is 576, while the sum is 22.

The square root of 6124621 is about 2474.7971634055. The cubic root of 6124621 is about 182.9615116087.

Adding to 6124621 its reverse (1264216), we get a palindrome (7388837).

The spelling of 6124621 in words is "six million, one hundred twenty-four thousand, six hundred twenty-one".