3603623 has 2 divisors, whose sum is σ = 3603624. Its totient is φ = 3603622.

The previous prime is 3603619. The next prime is 3603659. The reversal of 3603623 is 3263063.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3603623 - 2² = 3603619 is a prime.

It is a super-2 number, since 2×3603623² = 25972197452258, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3 + 6⁸ + 0 + 3¹⁰ + 6⁸ + 2¹³ + 3¹¹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3603323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1801811 + 1801812.

It is an arithmetic number, because the mean of its divisors is an integer number (1801812).

Almost surely, 2^3603623 is an apocalyptic number.

3603623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3603623 is an equidigital number, since it uses as much as digits as its factorization.

3603623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 3603623 is about 1898.3211003410. The cubic root of 3603623 is about 153.3132829275.

Adding to 3603623 its reverse (3263063), we get a palindrome (6866686).

It can be divided in two parts, 36036 and 23, that multiplied together give a palindrome (828828).

The spelling of 3603623 in words is "three million, six hundred three thousand, six hundred twenty-three".