797583161 has 2 divisors, whose sum is σ = 797583162. Its totient is φ = 797583160.

The previous prime is 797583133. The next prime is 797583173. The reversal of 797583161 is 161385797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578691136 + 218892025 = 24056^2 + 14795^2 .

It is an emirp because it is prime and its reverse (161385797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 797583161 - 2¹⁸ = 797321017 is a prime.

It is a super-2 number, since 2×797583161² = 1272277797421503842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (797583191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398791580 + 398791581.

It is an arithmetic number, because the mean of its divisors is an integer number (398791581).

Almost surely, 2^797583161 is an apocalyptic number.

It is an amenable number.

797583161 is a deficient number, since it is larger than the sum of its proper divisors (1).

797583161 is an equidigital number, since it uses as much as digits as its factorization.

797583161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The square root of 797583161 is about 28241.5148495969. The cubic root of 797583161 is about 927.3819926730.

The spelling of 797583161 in words is "seven hundred ninety-seven million, five hundred eighty-three thousand, one hundred sixty-one".