8864813 has 2 divisors, whose sum is σ = 8864814. Its totient is φ = 8864812.

The previous prime is 8864797. The next prime is 8864851. The reversal of 8864813 is 3184688.

It is an a-pointer prime, because the next prime (8864851) can be obtained adding 8864813 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5031049 + 3833764 = 2243^2 + 1958^2 .

It is a cyclic number.

It is not a de Polignac number, because 8864813 - 2⁴ = 8864797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8864893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4432406 + 4432407.

It is an arithmetic number, because the mean of its divisors is an integer number (4432407).

Almost surely, 2^8864813 is an apocalyptic number.

It is an amenable number.

8864813 is a deficient number, since it is larger than the sum of its proper divisors (1).

8864813 is an equidigital number, since it uses as much as digits as its factorization.

8864813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 38.

The square root of 8864813 is about 2977.3835829466. The cubic root of 8864813 is about 206.9616411610.

The spelling of 8864813 in words is "eight million, eight hundred sixty-four thousand, eight hundred thirteen".