770069369 has 2 divisors, whose sum is σ = 770069370. Its totient is φ = 770069368.

The previous prime is 770069353. The next prime is 770069381. The reversal of 770069369 is 963960077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643281769 + 126787600 = 25363^2 + 11260^2 .

It is an emirp because it is prime and its reverse (963960077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770069369 - 2⁴ = 770069353 is a prime.

It is a super-2 number, since 2×770069369² = 1186013666144116322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (770069329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385034684 + 385034685.

It is an arithmetic number, because the mean of its divisors is an integer number (385034685).

Almost surely, 2^770069369 is an apocalyptic number.

It is an amenable number.

770069369 is a deficient number, since it is larger than the sum of its proper divisors (1).

770069369 is an equidigital number, since it uses as much as digits as its factorization.

770069369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 770069369 is about 27750.1237654898. The cubic root of 770069369 is about 916.5931689538.

The spelling of 770069369 in words is "seven hundred seventy million, sixty-nine thousand, three hundred sixty-nine".