797109984 has 144 divisors (see below), whose sum is σ = 2564714880. Its totient is φ = 241522560.

The previous prime is 797109967. The next prime is 797110043. The reversal of 797109984 is 489901797.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 797109984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80877 + ... + 90195.

It is an arithmetic number, because the mean of its divisors is an integer number (17810520).

Almost surely, 2^797109984 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 797109984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282357440).

797109984 is an abundant number, since it is smaller than the sum of its proper divisors (1767604896).

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

797109984 is a wasteful number, since it uses less digits than its factorization.

797109984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9355 (or 9335 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 797109984 is about 28233.1362763686. The cubic root of 797109984 is about 927.1985624232.

The spelling of 797109984 in words is "seven hundred ninety-seven million, one hundred nine thousand, nine hundred eighty-four".