8213603 has 2 divisors, whose sum is σ = 8213604. Its totient is φ = 8213602.

The previous prime is 8213591. The next prime is 8213627. The reversal of 8213603 is 3063128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8213603 - 2⁸ = 8213347 is a prime.

It is equal to p₅₅₃₁₉₀ and since 8213603 and 553190 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8213633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106801 + 4106802.

It is an arithmetic number, because the mean of its divisors is an integer number (4106802).

Almost surely, 2^8213603 is an apocalyptic number.

8213603 is a deficient number, since it is larger than the sum of its proper divisors (1).

8213603 is an equidigital number, since it uses as much as digits as its factorization.

8213603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 8213603 is about 2865.9384152490. The cubic root of 8213603 is about 201.7644134518.

The spelling of 8213603 in words is "eight million, two hundred thirteen thousand, six hundred three".