6498647 has 4 divisors (see below), whose sum is σ = 6538680. Its totient is φ = 6458616.

The previous prime is 6498629. The next prime is 6498659. The reversal of 6498647 is 7468946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7468946 = 2 ⋅3734473.

It is a cyclic number.

It is not a de Polignac number, because 6498647 - 2¹⁶ = 6433111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6498598 and 6498607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6498847) 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, 19772 + ... + 20097.

It is an arithmetic number, because the mean of its divisors is an integer number (1634670).

Almost surely, 2^6498647 is an apocalyptic number.

6498647 is a deficient number, since it is larger than the sum of its proper divisors (40033).

6498647 is a wasteful number, since it uses less digits than its factorization.

6498647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40032.

The product of its digits is 290304, while the sum is 44.

The square root of 6498647 is about 2549.2443978560. The cubic root of 6498647 is about 186.6126079997.

Subtracting 6498647 from its reverse (7468946), we obtain a cube (970299 = 99³).

The spelling of 6498647 in words is "six million, four hundred ninety-eight thousand, six hundred forty-seven".