6920680 has 32 divisors (see below), whose sum is σ = 16770600. Its totient is φ = 2555136.

The previous prime is 6920651. The next prime is 6920681. The reversal of 6920680 is 860296.

It can be written as a sum of positive squares in 4 ways, for example, as 1965604 + 4955076 = 1402^2 + 2226^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6920681) 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, 6135 + ... + 7174.

Almost surely, 2^6920680 is an apocalyptic number.

It is an amenable number.

6920680 is an abundant number, since it is smaller than the sum of its proper divisors (9849920).

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

6920680 is a wasteful number, since it uses less digits than its factorization.

6920680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13333 (or 13329 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6920680 is about 2630.7185330248. The cubic root of 6920680 is about 190.5678303882.

The spelling of 6920680 in words is "six million, nine hundred twenty thousand, six hundred eighty".