6648461 has 4 divisors (see below), whose sum is σ = 6998400. Its totient is φ = 6298524.

The previous prime is 6648457. The next prime is 6648487. The reversal of 6648461 is 1648466.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1648466 = 2 ⋅824233.

It is a cyclic number.

It is not a de Polignac number, because 6648461 - 2² = 6648457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648401) 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, 174941 + ... + 174978.

It is an arithmetic number, because the mean of its divisors is an integer number (1749600).

Almost surely, 2^6648461 is an apocalyptic number.

It is an amenable number.

6648461 is a deficient number, since it is larger than the sum of its proper divisors (349939).

6648461 is a wasteful number, since it uses less digits than its factorization.

6648461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349938.

The product of its digits is 27648, while the sum is 35.

The square root of 6648461 is about 2578.4609750780. The cubic root of 6648461 is about 188.0357277051.

The spelling of 6648461 in words is "six million, six hundred forty-eight thousand, four hundred sixty-one".