6120621 has 12 divisors (see below), whose sum is σ = 9521148. Its totient is φ = 3766464.

The previous prime is 6120607. The next prime is 6120637. The reversal of 6120621 is 1260216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3515625 + 2604996 = 1875^2 + 1614^2 .

It is not a de Polignac number, because 6120621 - 2⁵ = 6120589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6120594 and 6120603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6122621) 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 11 ways as a sum of consecutive naturals, for example, 26040 + ... + 26273.

It is an arithmetic number, because the mean of its divisors is an integer number (793429).

Almost surely, 2^6120621 is an apocalyptic number.

It is an amenable number.

6120621 is a deficient number, since it is larger than the sum of its proper divisors (3400527).

6120621 is a wasteful number, since it uses less digits than its factorization.

6120621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52332 (or 52329 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 6120621 is about 2473.9888843728. The cubic root of 6120621 is about 182.9216721135.

Adding to 6120621 its reverse (1260216), we get a palindrome (7380837).

The spelling of 6120621 in words is "six million, one hundred twenty thousand, six hundred twenty-one".