1579009 has 2 divisors, whose sum is σ = 1579010. Its totient is φ = 1579008.

The previous prime is 1579001. The next prime is 1579013. The reversal of 1579009 is 9009751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804609 + 774400 = 897^2 + 880^2 .

It is an emirp because it is prime and its reverse (9009751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1579009 - 2³ = 1579001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1579001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 789504 + 789505.

It is an arithmetic number, because the mean of its divisors is an integer number (789505).

It is a Proth number, since it is equal to 771 ⋅ 2¹¹ + 1 and 771 < 2¹¹.

2^1579009 is an apocalyptic number.

It is an amenable number.

1579009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1579009 is an equidigital number, since it uses as much as digits as its factorization.

1579009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 1579009 is about 1256.5862485321. The cubic root of 1579009 is about 116.4469724962.

The spelling of 1579009 in words is "one million, five hundred seventy-nine thousand, nine".