797811672 has 128 divisors (see below), whose sum is σ = 2503987200. Its totient is φ = 206540928.

The previous prime is 797811613. The next prime is 797811673. The reversal of 797811672 is 276118797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797811673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67983 + ... + 78849.

It is an arithmetic number, because the mean of its divisors is an integer number (19562400).

Almost surely, 2^797811672 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 797811672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251993600).

797811672 is an abundant number, since it is smaller than the sum of its proper divisors (1706175528).

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

797811672 is a wasteful number, since it uses less digits than its factorization.

797811672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10925 (or 10921 counting only the distinct ones).

The product of its digits is 296352, while the sum is 48.

The square root of 797811672 is about 28245.5602174926. The cubic root of 797811672 is about 927.4705505237.

The spelling of 797811672 in words is "seven hundred ninety-seven million, eight hundred eleven thousand, six hundred seventy-two".