8231916949 has 2 divisors, whose sum is σ = 8231916950. Its totient is φ = 8231916948.

The previous prime is 8231916937. The next prime is 8231916967. The reversal of 8231916949 is 9496191328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8211621924 + 20295025 = 90618^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 8231916949 - 2⁹ = 8231916437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8231916896 and 8231916905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8231916929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4115958474 + 4115958475.

It is an arithmetic number, because the mean of its divisors is an integer number (4115958475).

Almost surely, 2^8231916949 is an apocalyptic number.

It is an amenable number.

8231916949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8231916949 is an equidigital number, since it uses as much as digits as its factorization.

8231916949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 8231916949 is about 90729.9120962872. The cubic root of 8231916949 is about 2019.1426081429.

The spelling of 8231916949 in words is "eight billion, two hundred thirty-one million, nine hundred sixteen thousand, nine hundred forty-nine".