770669 has 2 divisors, whose sum is σ = 770670. Its totient is φ = 770668.

The previous prime is 770663. The next prime is 770741. The reversal of 770669 is 966077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 714025 + 56644 = 845^2 + 238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770669 is a prime.

It is a super-2 number, since 2×770669² = 1187861415122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385334 + 385335.

It is an arithmetic number, because the mean of its divisors is an integer number (385335).

2⁷⁷⁰⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

770669 is a deficient number, since it is larger than the sum of its proper divisors (1).

770669 is an equidigital number, since it uses as much as digits as its factorization.

770669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 770669 is about 877.8775541042. The cubic root of 770669 is about 91.6831015528.

The spelling of 770669 in words is "seven hundred seventy thousand, six hundred sixty-nine".