6120809 has 2 divisors, whose sum is σ = 6120810. Its totient is φ = 6120808.

The previous prime is 6120787. The next prime is 6120823. The reversal of 6120809 is 9080216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5895184 + 225625 = 2428^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 6120809 - 2¹² = 6116713 is a prime.

It is equal to p₄₂₀₅₈₇ and since 6120809 and 420587 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (6120859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060404 + 3060405.

It is an arithmetic number, because the mean of its divisors is an integer number (3060405).

Almost surely, 2^6120809 is an apocalyptic number.

It is an amenable number.

6120809 is a deficient number, since it is larger than the sum of its proper divisors (1).

6120809 is an equidigital number, since it uses as much as digits as its factorization.

6120809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 6120809 is about 2474.0268794013. The cubic root of 6120809 is about 182.9235449584.

The spelling of 6120809 in words is "six million, one hundred twenty thousand, eight hundred nine".