6497816 has 32 divisors (see below), whose sum is σ = 13434960. Its totient is φ = 2927232.

The previous prime is 6497809. The next prime is 6497819. The reversal of 6497816 is 6187946.

It is a super-2 number, since 2×6497816² = 84443225539712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6497819) 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, 3746 + ... + 5198.

Almost surely, 2^6497816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6497816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6717480).

6497816 is an abundant number, since it is smaller than the sum of its proper divisors (6937144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6497816 is a wasteful number, since it uses less digits than its factorization.

6497816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1511 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 6497816 is about 2549.0814031725. The cubic root of 6497816 is about 186.6046534369.

The spelling of 6497816 in words is "six million, four hundred ninety-seven thousand, eight hundred sixteen".