6497549 has 8 divisors (see below), whose sum is σ = 6614400. Its totient is φ = 6381936.

The previous prime is 6497539. The next prime is 6497581. The reversal of 6497549 is 9457946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6497549 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 (6497509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20339 + ... + 20655.

It is an arithmetic number, because the mean of its divisors is an integer number (826800).

Almost surely, 2^6497549 is an apocalyptic number.

It is an amenable number.

6497549 is a deficient number, since it is larger than the sum of its proper divisors (116851).

6497549 is a wasteful number, since it uses less digits than its factorization.

6497549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its digits is 272160, while the sum is 44.

The square root of 6497549 is about 2549.0290308272. The cubic root of 6497549 is about 186.6020974948.

The spelling of 6497549 in words is "six million, four hundred ninety-seven thousand, five hundred forty-nine".