3643361 has 4 divisors (see below), whose sum is σ = 3801792. Its totient is φ = 3484932.

The previous prime is 3643351. The next prime is 3643363. The reversal of 3643361 is 1633463.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1633463 = 13 ⋅125651.

It is a cyclic number.

It is not a de Polignac number, because 3643361 - 2¹⁰ = 3642337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3643361.

It is not an unprimeable number, because it can be changed into a prime (3643363) 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, 79181 + ... + 79226.

It is an arithmetic number, because the mean of its divisors is an integer number (950448).

Almost surely, 2^3643361 is an apocalyptic number.

It is an amenable number.

3643361 is a deficient number, since it is larger than the sum of its proper divisors (158431).

3643361 is a wasteful number, since it uses less digits than its factorization.

3643361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158430.

The product of its digits is 3888, while the sum is 26.

The square root of 3643361 is about 1908.7590209348. The cubic root of 3643361 is about 153.8747646597.

It can be divided in two parts, 3643 and 361, that added together give a palindrome (4004).

The spelling of 3643361 in words is "three million, six hundred forty-three thousand, three hundred sixty-one".