6648261 has 4 divisors (see below), whose sum is σ = 8864352. Its totient is φ = 4432172.

The previous prime is 6648259. The next prime is 6648269. The reversal of 6648261 is 1628466.

It is a happy number.

6648261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6648261 - 2¹ = 6648259 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648269) 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, 1108041 + ... + 1108046.

It is an arithmetic number, because the mean of its divisors is an integer number (2216088).

Almost surely, 2^6648261 is an apocalyptic number.

It is an amenable number.

6648261 is a deficient number, since it is larger than the sum of its proper divisors (2216091).

6648261 is a wasteful number, since it uses less digits than its factorization.

6648261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216090.

The product of its digits is 13824, while the sum is 33.

The square root of 6648261 is about 2578.4221919616. The cubic root of 6648261 is about 188.0338421799.

The spelling of 6648261 in words is "six million, six hundred forty-eight thousand, two hundred sixty-one".