2389999769 has 2 divisors, whose sum is σ = 2389999770. Its totient is φ = 2389999768.

The previous prime is 2389999753. The next prime is 2389999811. The reversal of 2389999769 is 9679999832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2307553369 + 82446400 = 48037^2 + 9080^2 .

It is a cyclic number.

It is not a de Polignac number, because 2389999769 - 2⁴ = 2389999753 is a prime.

It is a super-2 number, since 2×2389999769² = 11424197791640106722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2389999709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194999884 + 1194999885.

It is an arithmetic number, because the mean of its divisors is an integer number (1194999885).

Almost surely, 2^2389999769 is an apocalyptic number.

It is an amenable number.

2389999769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2389999769 is an equidigital number, since it uses as much as digits as its factorization.

2389999769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119042784, while the sum is 71.

The square root of 2389999769 is about 48887.6238837602. The cubic root of 2389999769 is about 1337.0037324329.

The spelling of 2389999769 in words is "two billion, three hundred eighty-nine million, nine hundred ninety-nine thousand, seven hundred sixty-nine".