770664469 has 2 divisors, whose sum is σ = 770664470. Its totient is φ = 770664468.

The previous prime is 770664457. The next prime is 770664481. The reversal of 770664469 is 964466077.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (770664457) and next prime (770664481).

It can be written as a sum of positive squares in only one way, i.e., 737774244 + 32890225 = 27162^2 + 5735^2 .

It is an emirp because it is prime and its reverse (964466077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770664469 - 2⁷ = 770664341 is a prime.

It is a super-2 number, since 2×770664469² = 1187847447558103922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770664409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385332234 + 385332235.

It is an arithmetic number, because the mean of its divisors is an integer number (385332235).

Almost surely, 2^770664469 is an apocalyptic number.

It is an amenable number.

770664469 is a deficient number, since it is larger than the sum of its proper divisors (1).

770664469 is an equidigital number, since it uses as much as digits as its factorization.

770664469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The square root of 770664469 is about 27760.8441694412. The cubic root of 770664469 is about 916.8292187469.

The spelling of 770664469 in words is "seven hundred seventy million, six hundred sixty-four thousand, four hundred sixty-nine".