8556949 has 2 divisors, whose sum is σ = 8556950. Its totient is φ = 8556948.

The previous prime is 8556941. The next prime is 8556959. The reversal of 8556949 is 9496558.

8556949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6853924 + 1703025 = 2618^2 + 1305^2 .

It is a cyclic number.

It is not a de Polignac number, because 8556949 - 2³ = 8556941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8556899 and 8556908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8556941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4278474 + 4278475.

It is an arithmetic number, because the mean of its divisors is an integer number (4278475).

Almost surely, 2^8556949 is an apocalyptic number.

It is an amenable number.

8556949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8556949 is an equidigital number, since it uses as much as digits as its factorization.

8556949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 46.

The square root of 8556949 is about 2925.2263160309. The cubic root of 8556949 is about 204.5375178005.

The spelling of 8556949 in words is "eight million, five hundred fifty-six thousand, nine hundred forty-nine".