6980609 has 2 divisors, whose sum is σ = 6980610. Its totient is φ = 6980608.

The previous prime is 6980593. The next prime is 6980621. The reversal of 6980609 is 9060896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4080400 + 2900209 = 2020^2 + 1703^2 .

It is a cyclic number.

It is not a de Polignac number, because 6980609 - 2⁴ = 6980593 is a prime.

It is not a weakly prime, because it can be changed into another prime (6980629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3490304 + 3490305.

It is an arithmetic number, because the mean of its divisors is an integer number (3490305).

Almost surely, 2^6980609 is an apocalyptic number.

It is an amenable number.

6980609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6980609 is an equidigital number, since it uses as much as digits as its factorization.

6980609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 6980609 is about 2642.0842151604. The cubic root of 6980609 is about 191.1163185013.

The spelling of 6980609 in words is "six million, nine hundred eighty thousand, six hundred nine".