778364 has 6 divisors (see below), whose sum is σ = 1362144. Its totient is φ = 389180.

The previous prime is 778363. The next prime is 778391. The reversal of 778364 is 463877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97292 + ... + 97299.

It is an arithmetic number, because the mean of its divisors is an integer number (227024).

2⁷⁷⁸³⁶⁴ is an apocalyptic number.

It is an amenable number.

778364 is a deficient number, since it is larger than the sum of its proper divisors (583780).

778364 is a wasteful number, since it uses less digits than its factorization.

778364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194595 (or 194593 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 778364 is about 882.2493978462. The cubic root of 778364 is about 91.9872383055.

The spelling of 778364 in words is "seven hundred seventy-eight thousand, three hundred sixty-four".