2077409 has 2 divisors, whose sum is σ = 2077410. Its totient is φ = 2077408.

The previous prime is 2077399. The next prime is 2077483. The reversal of 2077409 is 9047702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 61009 = 1420^2 + 247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2077409 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2077499) 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, 1038704 + 1038705.

It is an arithmetic number, because the mean of its divisors is an integer number (1038705).

2^2077409 is an apocalyptic number.

It is an amenable number.

2077409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2077409 is an equidigital number, since it uses as much as digits as its factorization.

2077409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 2077409 is about 1441.3219626440. The cubic root of 2077409 is about 127.5970605285.

The spelling of 2077409 in words is "two million, seventy-seven thousand, four hundred nine".