6166409 has 2 divisors, whose sum is σ = 6166410. Its totient is φ = 6166408.

The previous prime is 6166403. The next prime is 6166417. The reversal of 6166409 is 9046616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3717184 + 2449225 = 1928^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 6166409 - 2¹⁶ = 6100873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6166403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3083204 + 3083205.

It is an arithmetic number, because the mean of its divisors is an integer number (3083205).

Almost surely, 2^6166409 is an apocalyptic number.

It is an amenable number.

6166409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6166409 is an equidigital number, since it uses as much as digits as its factorization.

6166409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 6166409 is about 2483.2255233869. The cubic root of 6166409 is about 183.3766813935.

The spelling of 6166409 in words is "six million, one hundred sixty-six thousand, four hundred nine".