769289489 has 2 divisors, whose sum is σ = 769289490. Its totient is φ = 769289488.

The previous prime is 769289429. The next prime is 769289497. The reversal of 769289489 is 984982967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751582225 + 17707264 = 27415^2 + 4208^2 .

It is a cyclic number.

It is not a de Polignac number, because 769289489 - 2²⁴ = 752512273 is a prime.

It is a super-2 number, since 2×769289489² = 1183612635771762242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (769289429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384644744 + 384644745.

It is an arithmetic number, because the mean of its divisors is an integer number (384644745).

Almost surely, 2^769289489 is an apocalyptic number.

It is an amenable number.

769289489 is a deficient number, since it is larger than the sum of its proper divisors (1).

769289489 is an equidigital number, since it uses as much as digits as its factorization.

769289489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 62.

The square root of 769289489 is about 27736.0683767545. The cubic root of 769289489 is about 916.2836409388.

The spelling of 769289489 in words is "seven hundred sixty-nine million, two hundred eighty-nine thousand, four hundred eighty-nine".