766062989 has 2 divisors, whose sum is σ = 766062990. Its totient is φ = 766062988.

The previous prime is 766062977. The next prime is 766063003. The reversal of 766062989 is 989260667.

766062989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622901764 + 143161225 = 24958^2 + 11965^2 .

It is an emirp because it is prime and its reverse (989260667) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766062989 is a prime.

It is a super-2 number, since 2×766062989² = 1173705006231228242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 766062989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766062889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383031494 + 383031495.

It is an arithmetic number, because the mean of its divisors is an integer number (383031495).

Almost surely, 2^766062989 is an apocalyptic number.

It is an amenable number.

766062989 is a deficient number, since it is larger than the sum of its proper divisors (1).

766062989 is an equidigital number, since it uses as much as digits as its factorization.

766062989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 766062989 is about 27677.8429253437. The cubic root of 766062989 is about 915.0008416686. Note that the first 3 decimals are identical.

The spelling of 766062989 in words is "seven hundred sixty-six million, sixty-two thousand, nine hundred eighty-nine".