823596881 has 2 divisors, whose sum is σ = 823596882. Its totient is φ = 823596880.

The previous prime is 823596817. The next prime is 823596887. The reversal of 823596881 is 188695328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699073600 + 124523281 = 26440^2 + 11159^2 .

It is a cyclic number.

It is not a de Polignac number, because 823596881 - 2⁶ = 823596817 is a prime.

It is a super-2 number, since 2×823596881² = 1356623644785856322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (823596887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411798440 + 411798441.

It is an arithmetic number, because the mean of its divisors is an integer number (411798441).

Almost surely, 2^823596881 is an apocalyptic number.

It is an amenable number.

823596881 is a deficient number, since it is larger than the sum of its proper divisors (1).

823596881 is an equidigital number, since it uses as much as digits as its factorization.

823596881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 50.

The square root of 823596881 is about 28698.3776719173. The cubic root of 823596881 is about 937.3567211200.

The spelling of 823596881 in words is "eight hundred twenty-three million, five hundred ninety-six thousand, eight hundred eighty-one".