8770213 has 2 divisors, whose sum is σ = 8770214. Its totient is φ = 8770212.

The previous prime is 8770193. The next prime is 8770217. The reversal of 8770213 is 3120778.

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., 8749764 + 20449 = 2958^2 + 143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8770213 is a prime.

8770213 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8770217) 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, 4385106 + 4385107.

It is an arithmetic number, because the mean of its divisors is an integer number (4385107).

Almost surely, 2^8770213 is an apocalyptic number.

It is an amenable number.

8770213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8770213 is an equidigital number, since it uses as much as digits as its factorization.

8770213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 8770213 is about 2961.4545412685. The cubic root of 8770213 is about 206.2228163745. Note that the first 3 decimals are identical.

The spelling of 8770213 in words is "eight million, seven hundred seventy thousand, two hundred thirteen".