3643579 has 2 divisors, whose sum is σ = 3643580. Its totient is φ = 3643578.

The previous prime is 3643561. The next prime is 3643603. The reversal of 3643579 is 9753463.

It is a weak prime.

It is an emirp because it is prime and its reverse (9753463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3643579 - 2¹⁵ = 3610811 is a prime.

It is not a weakly prime, because it can be changed into another prime (3643529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821789 + 1821790.

It is an arithmetic number, because the mean of its divisors is an integer number (1821790).

Almost surely, 2^3643579 is an apocalyptic number.

3643579 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643579 is an equidigital number, since it uses as much as digits as its factorization.

3643579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 37.

The square root of 3643579 is about 1908.8161252462. The cubic root of 3643579 is about 153.8778336235.

The spelling of 3643579 in words is "three million, six hundred forty-three thousand, five hundred seventy-nine".