8545813 has 2 divisors, whose sum is σ = 8545814. Its totient is φ = 8545812.

The previous prime is 8545787. The next prime is 8545829. The reversal of 8545813 is 3185458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5963364 + 2582449 = 2442^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 8545813 - 2⁹ = 8545301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8545843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4272906 + 4272907.

It is an arithmetic number, because the mean of its divisors is an integer number (4272907).

Almost surely, 2^8545813 is an apocalyptic number.

It is an amenable number.

8545813 is a deficient number, since it is larger than the sum of its proper divisors (1).

8545813 is an equidigital number, since it uses as much as digits as its factorization.

8545813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 34.

The square root of 8545813 is about 2923.3222538749. The cubic root of 8545813 is about 204.4487510142.

The spelling of 8545813 in words is "eight million, five hundred forty-five thousand, eight hundred thirteen".