770666 has 8 divisors (see below), whose sum is σ = 1244964. Its totient is φ = 355680.

The previous prime is 770663. The next prime is 770669. The reversal of 770666 is 666077.

770666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (770663) and next prime (770669).

It can be written as a sum of positive squares in 2 ways, for example, as 765625 + 5041 = 875^2 + 71^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (770663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14795 + ... + 14846.

2⁷⁷⁰⁶⁶⁶ is an apocalyptic number.

770666 is a deficient number, since it is larger than the sum of its proper divisors (474298).

770666 is a wasteful number, since it uses less digits than its factorization.

770666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29656.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 770666 is about 877.8758454360. The cubic root of 770666 is about 91.6829825870.

The spelling of 770666 in words is "seven hundred seventy thousand, six hundred sixty-six".