1323829889 has 2 divisors, whose sum is σ = 1323829890. Its totient is φ = 1323829888.

The previous prime is 1323829879. The next prime is 1323829901. The reversal of 1323829889 is 9889283231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1061130625 + 262699264 = 32575^2 + 16208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323829889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323829889.

It is not a weakly prime, because it can be changed into another prime (1323829849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661914944 + 661914945.

It is an arithmetic number, because the mean of its divisors is an integer number (661914945).

Almost surely, 2^1323829889 is an apocalyptic number.

It is an amenable number.

1323829889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323829889 is an equidigital number, since it uses as much as digits as its factorization.

1323829889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 53.

The square root of 1323829889 is about 36384.4731856873. The cubic root of 1323829889 is about 1098.0212052821.

The spelling of 1323829889 in words is "one billion, three hundred twenty-three million, eight hundred twenty-nine thousand, eight hundred eighty-nine".