1323779089 has 2 divisors, whose sum is σ = 1323779090. Its totient is φ = 1323779088.

The previous prime is 1323779057. The next prime is 1323779101. The reversal of 1323779089 is 9809773231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969699600 + 354079489 = 31140^2 + 18817^2 .

It is an emirp because it is prime and its reverse (9809773231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323779089 - 2⁵ = 1323779057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323779029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661889544 + 661889545.

It is an arithmetic number, because the mean of its divisors is an integer number (661889545).

Almost surely, 2^1323779089 is an apocalyptic number.

It is an amenable number.

1323779089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323779089 is an equidigital number, since it uses as much as digits as its factorization.

1323779089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 1323779089 is about 36383.7750790101. The cubic root of 1323779089 is about 1098.0071601264.

The spelling of 1323779089 in words is "one billion, three hundred twenty-three million, seven hundred seventy-nine thousand, eighty-nine".