3643013 has 4 divisors (see below), whose sum is σ = 3974208. Its totient is φ = 3311820.

The previous prime is 3643001. The next prime is 3643033. The reversal of 3643013 is 3103463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3643013 - 2¹² = 3638917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165581 + ... + 165602.

It is an arithmetic number, because the mean of its divisors is an integer number (993552).

Almost surely, 2^3643013 is an apocalyptic number.

It is an amenable number.

3643013 is a deficient number, since it is larger than the sum of its proper divisors (331195).

3643013 is a wasteful number, since it uses less digits than its factorization.

3643013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331194.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3643013 is about 1908.6678600532. The cubic root of 3643013 is about 153.8698653261.

Adding to 3643013 its reverse (3103463), we get a palindrome (6746476).

The spelling of 3643013 in words is "three million, six hundred forty-three thousand, thirteen".