778396 has 12 divisors (see below), whose sum is σ = 1442448. Its totient is φ = 366272.

The previous prime is 778391. The next prime is 778397. The reversal of 778396 is 693877.

778396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778391) by changing a digit.

778396 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5656 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (120204).

2⁷⁷⁸³⁹⁶ is an apocalyptic number.

It is an amenable number.

778396 is a deficient number, since it is larger than the sum of its proper divisors (664052).

778396 is a wasteful number, since it uses less digits than its factorization.

778396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468 (or 11466 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 778396 is about 882.2675331213. The cubic root of 778396 is about 91.9884988773.

The spelling of 778396 in words is "seven hundred seventy-eight thousand, three hundred ninety-six".