770978 has 12 divisors (see below), whose sum is σ = 1252818. Its totient is φ = 355680.

The previous prime is 770971. The next prime is 770981. The reversal of 770978 is 879077.

770978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 426409 + 344569 = 653^2 + 587^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (770971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 803 + ... + 1478.

2⁷⁷⁰⁹⁷⁸ is an apocalyptic number.

770978 is a deficient number, since it is larger than the sum of its proper divisors (481840).

770978 is a wasteful number, since it uses less digits than its factorization.

770978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 770978 is about 878.0535291200. The cubic root of 770978 is about 91.6953533725.

The spelling of 770978 in words is "seven hundred seventy thousand, nine hundred seventy-eight".