6648953 has 4 divisors (see below), whose sum is σ = 6654708. Its totient is φ = 6643200.

The previous prime is 6648883. The next prime is 6648977. The reversal of 6648953 is 3598466.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3598466 = 2 ⋅1799233.

It can be written as a sum of positive squares in 2 ways, for example, as 3523129 + 3125824 = 1877^2 + 1768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6648953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6648953.

It is not an unprimeable number, because it can be changed into a prime (6648053) 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, 476 + ... + 3677.

It is an arithmetic number, because the mean of its divisors is an integer number (1663677).

Almost surely, 2^6648953 is an apocalyptic number.

It is an amenable number.

6648953 is a deficient number, since it is larger than the sum of its proper divisors (5755).

6648953 is a wasteful number, since it uses less digits than its factorization.

6648953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754.

The product of its digits is 155520, while the sum is 41.

The square root of 6648953 is about 2578.5563790617. The cubic root of 6648953 is about 188.0403659362.

The spelling of 6648953 in words is "six million, six hundred forty-eight thousand, nine hundred fifty-three".