5821603 has 2 divisors, whose sum is σ = 5821604. Its totient is φ = 5821602.

The previous prime is 5821597. The next prime is 5821637. The reversal of 5821603 is 3061285.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5821603 is a prime.

It is a super-2 number, since 2×5821603² = 67782122979218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5821643) 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, 2910801 + 2910802.

It is an arithmetic number, because the mean of its divisors is an integer number (2910802).

Almost surely, 2^5821603 is an apocalyptic number.

5821603 is a deficient number, since it is larger than the sum of its proper divisors (1).

5821603 is an equidigital number, since it uses as much as digits as its factorization.

5821603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 5821603 is about 2412.7998259284. The cubic root of 5821603 is about 179.8929713524.

Adding to 5821603 its reverse (3061285), we get a palindrome (8882888).

The spelling of 5821603 in words is "five million, eight hundred twenty-one thousand, six hundred three".