3645533 has 2 divisors, whose sum is σ = 3645534. Its totient is φ = 3645532.

The previous prime is 3645527. The next prime is 3645539. The reversal of 3645533 is 3355463.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (3645527) and next prime (3645539).

It can be written as a sum of positive squares in only one way, i.e., 3378244 + 267289 = 1838^2 + 517^2 .

It is a cyclic number.

It is not a de Polignac number, because 3645533 - 2⁶ = 3645469 is a prime.

It is a d-powerful number, because it can be written as 3⁸ + 6⁶ + 4¹⁰ + 5³ + 5⁹ + 3¹⁰ + 3¹² .

It is a junction number, because it is equal to n+sod(n) for n = 3645496 and 3645505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3645539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822766 + 1822767.

It is an arithmetic number, because the mean of its divisors is an integer number (1822767).

Almost surely, 2^3645533 is an apocalyptic number.

It is an amenable number.

3645533 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645533 is an equidigital number, since it uses as much as digits as its factorization.

3645533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 29.

The square root of 3645533 is about 1909.3278922176. The cubic root of 3645533 is about 153.9053362113.

The spelling of 3645533 in words is "three million, six hundred forty-five thousand, five hundred thirty-three".