6648986 has 8 divisors (see below), whose sum is σ = 10110324. Its totient is φ = 3278880.

The previous prime is 6648979. The next prime is 6648991. The reversal of 6648986 is 6898466.

It can be written as a sum of positive squares in 2 ways, for example, as 6325225 + 323761 = 2515^2 + 569^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 6648986.

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, 22625 + ... + 22916.

Almost surely, 2^6648986 is an apocalyptic number.

6648986 is a deficient number, since it is larger than the sum of its proper divisors (3461338).

6648986 is a wasteful number, since it uses less digits than its factorization.

6648986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45616.

The product of its digits is 497664, while the sum is 47.

The square root of 6648986 is about 2578.5627779831. The cubic root of 6648986 is about 188.0406770289.

The spelling of 6648986 in words is "six million, six hundred forty-eight thousand, nine hundred eighty-six".