8547949 has 2 divisors, whose sum is σ = 8547950. Its totient is φ = 8547948.

The previous prime is 8547947. The next prime is 8547983. The reversal of 8547949 is 9497458.

8547949 is digitally balanced in base 2 and base 3, because in such bases 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., 6985449 + 1562500 = 2643^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 8547949 - 2¹ = 8547947 is a prime.

Together with 8547947, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8547899 and 8547908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8547941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4273974 + 4273975.

It is an arithmetic number, because the mean of its divisors is an integer number (4273975).

Almost surely, 2^8547949 is an apocalyptic number.

It is an amenable number.

8547949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8547949 is an equidigital number, since it uses as much as digits as its factorization.

8547949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 8547949 is about 2923.6875688076. The cubic root of 8547949 is about 204.4657833766.

The spelling of 8547949 in words is "eight million, five hundred forty-seven thousand, nine hundred forty-nine".