1179649 has 2 divisors, whose sum is σ = 1179650. Its totient is φ = 1179648.

The previous prime is 1179641. The next prime is 1179677. The reversal of 1179649 is 9469711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986049 + 193600 = 993^2 + 440^2 .

It is an emirp because it is prime and its reverse (9469711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1179649 - 2³ = 1179641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1179641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a Pierpont prime, being equal to 2¹⁷ ⋅ 3² + 1.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589824 + 589825.

It is an arithmetic number, because the mean of its divisors is an integer number (589825).

It is a Proth number, since it is equal to 9 ⋅ 2¹⁷ + 1 and 9 < 2¹⁷.

2^1179649 is an apocalyptic number.

It is an amenable number.

1179649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1179649 is an equidigital number, since it uses as much as digits as its factorization.

1179649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 37.

The square root of 1179649 is about 1086.1164762584. The cubic root of 1179649 is about 105.6617018215.

The spelling of 1179649 in words is "one million, one hundred seventy-nine thousand, six hundred forty-nine".