6809972 has 24 divisors (see below), whose sum is σ = 12925416. Its totient is φ = 3120768.

The previous prime is 6809927. The next prime is 6809981. The reversal of 6809972 is 2799086.

It can be written as a sum of positive squares in 4 ways, for example, as 1547536 + 5262436 = 1244^2 + 2294^2 .

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, 8618 + ... + 9374.

It is an arithmetic number, because the mean of its divisors is an integer number (538559).

Almost surely, 2^6809972 is an apocalyptic number.

It is an amenable number.

6809972 is a deficient number, since it is larger than the sum of its proper divisors (6115444).

6809972 is a wasteful number, since it uses less digits than its factorization.

6809972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 6809972 is about 2609.5923053228. The cubic root of 6809972 is about 189.5462116050.

The spelling of 6809972 in words is "six million, eight hundred nine thousand, nine hundred seventy-two".