1329484769 has 2 divisors, whose sum is σ = 1329484770. Its totient is φ = 1329484768.

The previous prime is 1329484763. The next prime is 1329484781. The reversal of 1329484769 is 9674849231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932997025 + 396487744 = 30545^2 + 19912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1329484769 is a prime.

It is a super-2 number, since 2×1329484769² = 3535059502005966722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1329484769.

It is not a weakly prime, because it can be changed into another prime (1329484763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664742384 + 664742385.

It is an arithmetic number, because the mean of its divisors is an integer number (664742385).

Almost surely, 2^1329484769 is an apocalyptic number.

It is an amenable number.

1329484769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329484769 is an equidigital number, since it uses as much as digits as its factorization.

1329484769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 1329484769 is about 36462.1004469024. The cubic root of 1329484769 is about 1099.5824224927.

The spelling of 1329484769 in words is "one billion, three hundred twenty-nine million, four hundred eighty-four thousand, seven hundred sixty-nine".