3624521 has 2 divisors, whose sum is σ = 3624522. Its totient is φ = 3624520.

The previous prime is 3624503. The next prime is 3624529. The reversal of 3624521 is 1254263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 855625 = 1664^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 3624521 - 2⁶ = 3624457 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 6⁴ + 2¹¹ + 4⁸ + 5⁹ + 2¹³ + 1 .

It is not a weakly prime, because it can be changed into another prime (3624529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1812260 + 1812261.

It is an arithmetic number, because the mean of its divisors is an integer number (1812261).

Almost surely, 2^3624521 is an apocalyptic number.

It is an amenable number.

3624521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3624521 is an equidigital number, since it uses as much as digits as its factorization.

3624521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 3624521 is about 1903.8174807476. The cubic root of 3624521 is about 153.6090748264.

Adding to 3624521 its reverse (1254263), we get a palindrome (4878784).

The spelling of 3624521 in words is "three million, six hundred twenty-four thousand, five hundred twenty-one".