6498649 has 4 divisors (see below), whose sum is σ = 6526080. Its totient is φ = 6471220.

The previous prime is 6498629. The next prime is 6498659. The reversal of 6498649 is 9468946.

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 6498649 - 2⁷ = 6498521 is a prime.

It is a Duffinian number.

6498649 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6498599 and 6498608.

It is not an unprimeable number, because it can be changed into a prime (6498629) 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 3 ways as a sum of consecutive naturals, for example, 13357 + ... + 13834.

It is an arithmetic number, because the mean of its divisors is an integer number (1631520).

Almost surely, 2^6498649 is an apocalyptic number.

It is an amenable number.

6498649 is a deficient number, since it is larger than the sum of its proper divisors (27431).

6498649 is a wasteful number, since it uses less digits than its factorization.

6498649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27430.

The product of its digits is 373248, while the sum is 46.

The square root of 6498649 is about 2549.2447901290. The cubic root of 6498649 is about 186.6126271435.

The spelling of 6498649 in words is "six million, four hundred ninety-eight thousand, six hundred forty-nine".