770065 has 8 divisors (see below), whose sum is σ = 929448. Its totient is φ = 612480.

The previous prime is 770059. The next prime is 770069. The reversal of 770065 is 560077.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 693889 = 276^2 + 833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 770065 - 2³ = 770057 is a prime.

It is a Duffinian number.

770065 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 770065.

It is not an unprimeable number, because it can be changed into a prime (770069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835 + ... + 1495.

It is an arithmetic number, because the mean of its divisors is an integer number (116181).

2⁷⁷⁰⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

770065 is a deficient number, since it is larger than the sum of its proper divisors (159383).

770065 is a wasteful number, since it uses less digits than its factorization.

770065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 770065 is about 877.5334751450. The cubic root of 770065 is about 91.6591435516.

It can be divided in two parts, 7700 and 65, that multiplied together give a triangular number (500500 = T₁₀₀₀).

The spelling of 770065 in words is "seven hundred seventy thousand, sixty-five".