6986649 has 4 divisors (see below), whose sum is σ = 9315536. Its totient is φ = 4657764.

The previous prime is 6986647. The next prime is 6986659. The reversal of 6986649 is 9466896.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6986649 - 2¹ = 6986647 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6986598 and 6986607.

It is not an unprimeable number, because it can be changed into a prime (6986647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164439 + ... + 1164444.

It is an arithmetic number, because the mean of its divisors is an integer number (2328884).

Almost surely, 2^6986649 is an apocalyptic number.

It is an amenable number.

6986649 is a deficient number, since it is larger than the sum of its proper divisors (2328887).

6986649 is a wasteful number, since it uses less digits than its factorization.

6986649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328886.

The product of its digits is 559872, while the sum is 48.

The square root of 6986649 is about 2643.2270050073. The cubic root of 6986649 is about 191.1714239986.

The spelling of 6986649 in words is "six million, nine hundred eighty-six thousand, six hundred forty-nine".