6986644 has 24 divisors (see below), whose sum is σ = 14273280. Its totient is φ = 2930016.

The previous prime is 6986627. The next prime is 6986647. The reversal of 6986644 is 4466896.

It is a self number, because there is not a number n which added to its sum of digits gives 6986644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986647) 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, 1339 + ... + 3970.

It is an arithmetic number, because the mean of its divisors is an integer number (594720).

Almost surely, 2^6986644 is an apocalyptic number.

It is an amenable number.

6986644 is an abundant number, since it is smaller than the sum of its proper divisors (7286636).

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

6986644 is a wasteful number, since it uses less digits than its factorization.

6986644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367 (or 5365 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 6986644 is about 2643.2260591936. The cubic root of 6986644 is about 191.1713783946.

The spelling of 6986644 in words is "six million, nine hundred eighty-six thousand, six hundred forty-four".