797830081 has 8 divisors (see below), whose sum is σ = 805184744. Its totient is φ = 790508160.

The previous prime is 797830079. The next prime is 797830097. The reversal of 797830081 is 180038797.

It can be written as a sum of positive squares in 4 ways, for example, as 1461681 + 796368400 = 1209^2 + 28220^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 797830081 - 2¹ = 797830079 is a prime.

It is a super-2 number, since 2×797830081² = 1273065676296933122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797830021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42181 + ... + 58093.

It is an arithmetic number, because the mean of its divisors is an integer number (100648093).

Almost surely, 2^797830081 is an apocalyptic number.

It is an amenable number.

797830081 is a deficient number, since it is larger than the sum of its proper divisors (7354663).

797830081 is a wasteful number, since it uses less digits than its factorization.

797830081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16371.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 797830081 is about 28245.8860898362. The cubic root of 797830081 is about 927.4776840677.

The spelling of 797830081 in words is "seven hundred ninety-seven million, eight hundred thirty thousand, eighty-one".