770889 has 8 divisors (see below), whose sum is σ = 1174720. Its totient is φ = 440496.

The previous prime is 770881. The next prime is 770897. The reversal of 770889 is 988077.

770889 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 (770881) and next prime (770897).

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

It is not a de Polignac number, because 770889 - 2³ = 770881 is a prime.

It is a Duffinian number.

It is a Curzon number.

770889 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 770889.

It is not an unprimeable number, because it can be changed into a prime (770881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18334 + ... + 18375.

It is an arithmetic number, because the mean of its divisors is an integer number (146840).

2⁷⁷⁰⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

770889 is a deficient number, since it is larger than the sum of its proper divisors (403831).

770889 is a wasteful number, since it uses less digits than its factorization.

770889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36719.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 770889 is about 878.0028473758. The cubic root of 770889 is about 91.6918248669.

The spelling of 770889 in words is "seven hundred seventy thousand, eight hundred eighty-nine".