797703720 has 128 divisors (see below), whose sum is σ = 2681389440. Its totient is φ = 188144640.

The previous prime is 797703719. The next prime is 797703721. The reversal of 797703720 is 27307797.

It is an interprime number because it is at equal distance from previous prime (797703719) and next prime (797703721).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (797703721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40674 + ... + 57006.

It is an arithmetic number, because the mean of its divisors is an integer number (20948355).

Almost surely, 2^797703720 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 797703720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340694720).

797703720 is an abundant number, since it is smaller than the sum of its proper divisors (1883685720).

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

797703720 is a wasteful number, since it uses less digits than its factorization.

797703720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16395 (or 16391 counting only the distinct ones).

The product of its (nonzero) digits is 129654, while the sum is 42.

The square root of 797703720 is about 28243.6491976515. The cubic root of 797703720 is about 927.4287165836.

The spelling of 797703720 in words is "seven hundred ninety-seven million, seven hundred three thousand, seven hundred twenty".