8553949 has 2 divisors, whose sum is σ = 8553950. Its totient is φ = 8553948.

The previous prime is 8553929. The next prime is 8553959. The reversal of 8553949 is 9493558.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8468100 + 85849 = 2910^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 8553949 - 2⁷ = 8553821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8553929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4276974 + 4276975.

It is an arithmetic number, because the mean of its divisors is an integer number (4276975).

Almost surely, 2^8553949 is an apocalyptic number.

It is an amenable number.

8553949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8553949 is an equidigital number, since it uses as much as digits as its factorization.

8553949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 43.

The square root of 8553949 is about 2924.7134902414. The cubic root of 8553949 is about 204.5136119171.

The spelling of 8553949 in words is "eight million, five hundred fifty-three thousand, nine hundred forty-nine".