797776 has 40 divisors (see below), whose sum is σ = 1874880. Its totient is φ = 321024.

The previous prime is 797773. The next prime is 797813. The reversal of 797776 is 677797.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695 + ... + 2113.

It is an arithmetic number, because the mean of its divisors is an integer number (46872).

2⁷⁹⁷⁷⁷⁶ 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 797776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937440).

797776 is an abundant number, since it is smaller than the sum of its proper divisors (1077104).

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

797776 is a wasteful number, since it uses less digits than its factorization.

797776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 445 counting only the distinct ones).

The product of its digits is 129654, while the sum is 43.

The square root of 797776 is about 893.1830719399. The cubic root of 797776 is about 92.7456727202.

The spelling of 797776 in words is "seven hundred ninety-seven thousand, seven hundred seventy-six".