778596 has 96 divisors (see below), whose sum is σ = 2408448. Its totient is φ = 190080.

The previous prime is 778579. The next prime is 778597. The reversal of 778596 is 695877.

778596 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778597) by changing a digit.

778596 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 31 ways as a sum of consecutive naturals, for example, 25101 + ... + 25131.

It is an arithmetic number, because the mean of its divisors is an integer number (25088).

2⁷⁷⁸⁵⁹⁶ 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 778596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204224).

778596 is an abundant number, since it is smaller than the sum of its proper divisors (1629852).

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

778596 is a wasteful number, since it uses less digits than its factorization.

778596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 79 counting only the distinct ones).

The product of its digits is 105840, while the sum is 42.

The square root of 778596 is about 882.3808701462. The cubic root of 778596 is about 91.9963766689.

The spelling of 778596 in words is "seven hundred seventy-eight thousand, five hundred ninety-six".