769076989 has 2 divisors, whose sum is σ = 769076990. Its totient is φ = 769076988.

The previous prime is 769076981. The next prime is 769076993. The reversal of 769076989 is 989670967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560505625 + 208571364 = 23675^2 + 14442^2 .

It is an emirp because it is prime and its reverse (989670967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769076989 - 2³ = 769076981 is a prime.

It is a super-2 number, since 2×769076989² = 1182958830018612242, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769076981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384538494 + 384538495.

It is an arithmetic number, because the mean of its divisors is an integer number (384538495).

Almost surely, 2^769076989 is an apocalyptic number.

It is an amenable number.

769076989 is a deficient number, since it is larger than the sum of its proper divisors (1).

769076989 is an equidigital number, since it uses as much as digits as its factorization.

769076989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The square root of 769076989 is about 27732.2373601554. The cubic root of 769076989 is about 916.1992651576.

The spelling of 769076989 in words is "seven hundred sixty-nine million, seventy-six thousand, nine hundred eighty-nine".