1559879 has 2 divisors, whose sum is σ = 1559880. Its totient is φ = 1559878.

The previous prime is 1559851. The next prime is 1559891. The reversal of 1559879 is 9789551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1559879 - 2¹⁶ = 1494343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1559839) 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, 779939 + 779940.

It is an arithmetic number, because the mean of its divisors is an integer number (779940).

2^1559879 is an apocalyptic number.

1559879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1559879 is an equidigital number, since it uses as much as digits as its factorization.

1559879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 44.

The square root of 1559879 is about 1248.9511599738. The cubic root of 1559879 is about 115.9748013041.

The spelling of 1559879 in words is "one million, five hundred fifty-nine thousand, eight hundred seventy-nine".