6496778 has 8 divisors (see below), whose sum is σ = 9982980. Its totient is φ = 3169120.

The previous prime is 6496759. The next prime is 6496799. The reversal of 6496778 is 8776946.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6466849 + 29929 = 2543^2 + 173^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39533 + ... + 39696.

Almost surely, 2^6496778 is an apocalyptic number.

6496778 is a deficient number, since it is larger than the sum of its proper divisors (3486202).

6496778 is a wasteful number, since it uses less digits than its factorization.

6496778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79272.

The product of its digits is 508032, while the sum is 47.

The square root of 6496778 is about 2548.8777922843. The cubic root of 6496778 is about 186.5947164599.

The spelling of 6496778 in words is "six million, four hundred ninety-six thousand, seven hundred seventy-eight".