797984 has 24 divisors (see below), whose sum is σ = 1714608. Its totient is φ = 362560.

The previous prime is 797977. The next prime is 797987. The reversal of 797984 is 489797.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (797987) 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 3 ways as a sum of consecutive naturals, for example, 782 + ... + 1485.

It is an arithmetic number, because the mean of its divisors is an integer number (71442).

2⁷⁹⁷⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

797984 is an abundant number, since it is smaller than the sum of its proper divisors (916624).

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

797984 is a wasteful number, since it uses less digits than its factorization.

797984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2280 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 797984 is about 893.2995018469. The cubic root of 797984 is about 92.7537323859.

The spelling of 797984 in words is "seven hundred ninety-seven thousand, nine hundred eighty-four".