778104 has 48 divisors (see below), whose sum is σ = 2148120. Its totient is φ = 254400.

The previous prime is 778097. The next prime is 778109. The reversal of 778104 is 401877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7219 + ... + 7325.

2⁷⁷⁸¹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 778104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074060).

778104 is an abundant number, since it is smaller than the sum of its proper divisors (1370016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

778104 is a wasteful number, since it uses less digits than its factorization.

778104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 778104 is about 882.1020349143. The cubic root of 778104 is about 91.9769948780.

The spelling of 778104 in words is "seven hundred seventy-eight thousand, one hundred four".