6980405 has 8 divisors (see below), whose sum is σ = 8571552. Its totient is φ = 5454288.

The previous prime is 6980401. The next prime is 6980417. The reversal of 6980405 is 5040896.

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

It is a cyclic number.

It is not a de Polignac number, because 6980405 - 2² = 6980401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6980401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16019 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (1071444).

Almost surely, 2^6980405 is an apocalyptic number.

It is an amenable number.

6980405 is a deficient number, since it is larger than the sum of its proper divisors (1591147).

6980405 is a wasteful number, since it uses less digits than its factorization.

6980405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32515.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6980405 is about 2642.0456089932. The cubic root of 6980405 is about 191.1144567674.

The spelling of 6980405 in words is "six million, nine hundred eighty thousand, four hundred five".