823230977 has 2 divisors, whose sum is σ = 823230978. Its totient is φ = 823230976.

The previous prime is 823230911. The next prime is 823230983. The reversal of 823230977 is 779032328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791240641 + 31990336 = 28129^2 + 5656^2 .

It is a cyclic number.

It is not a de Polignac number, because 823230977 - 2⁸ = 823230721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (823230277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411615488 + 411615489.

It is an arithmetic number, because the mean of its divisors is an integer number (411615489).

Almost surely, 2^823230977 is an apocalyptic number.

It is an amenable number.

823230977 is a deficient number, since it is larger than the sum of its proper divisors (1).

823230977 is an equidigital number, since it uses as much as digits as its factorization.

823230977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 823230977 is about 28692.0019691900. The cubic root of 823230977 is about 937.2178856504.

The spelling of 823230977 in words is "eight hundred twenty-three million, two hundred thirty thousand, nine hundred seventy-seven".