770449 has 2 divisors, whose sum is σ = 770450. Its totient is φ = 770448.

The previous prime is 770447. The next prime is 770459. The reversal of 770449 is 944077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 180625 = 768^2 + 425^2 .

It is an emirp because it is prime and its reverse (944077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770449 - 2¹ = 770447 is a prime.

Together with 770447, it forms a pair of twin primes.

770449 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 770449.

It is not a weakly prime, because it can be changed into another prime (770447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385224 + 385225.

It is an arithmetic number, because the mean of its divisors is an integer number (385225).

2⁷⁷⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

770449 is a deficient number, since it is larger than the sum of its proper divisors (1).

770449 is an equidigital number, since it uses as much as digits as its factorization.

770449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 770449 is about 877.7522429479. The cubic root of 770449 is about 91.6743765783.

It can be divided in two parts, 77044 and 9, that multiplied together give a palindrome (693396).

The spelling of 770449 in words is "seven hundred seventy thousand, four hundred forty-nine".