6652649 has 6 divisors (see below), whose sum is σ = 6724926. Its totient is φ = 6581120.

The previous prime is 6652643. The next prime is 6652651. The reversal of 6652649 is 9462566.

It can be written as a sum of positive squares in 3 ways, for example, as 868624 + 5784025 = 932^2 + 2405^2 .

It is not a de Polignac number, because 6652649 - 2²⁰ = 5604073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6652643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12509 + ... + 13029.

It is an arithmetic number, because the mean of its divisors is an integer number (1120821).

Almost surely, 2^6652649 is an apocalyptic number.

It is an amenable number.

6652649 is a deficient number, since it is larger than the sum of its proper divisors (72277).

6652649 is an equidigital number, since it uses as much as digits as its factorization.

6652649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 634 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 6652649 is about 2579.2729595760. The cubic root of 6652649 is about 188.0752019199.

The spelling of 6652649 in words is "six million, six hundred fifty-two thousand, six hundred forty-nine".