6499918 has 16 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 3181176.

The previous prime is 6499903. The next prime is 6499939. The reversal of 6499918 is 8199946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28521 + ... + 28747.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 2^6499918 is an apocalyptic number.

6499918 is a deficient number, since it is larger than the sum of its proper divisors (3459122).

6499918 is a wasteful number, since it uses less digits than its factorization.

6499918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 139968, while the sum is 46.

The square root of 6499918 is about 2549.4936752226. The cubic root of 6499918 is about 186.6247730532.

The spelling of 6499918 in words is "six million, four hundred ninety-nine thousand, nine hundred eighteen".