3639133 has 4 divisors (see below), whose sum is σ = 3723808. Its totient is φ = 3554460.

The previous prime is 3639109. The next prime is 3639143. The reversal of 3639133 is 3319363.

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 3639133 - 2¹⁷ = 3508061 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 (3639143) 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, 42273 + ... + 42358.

It is an arithmetic number, because the mean of its divisors is an integer number (930952).

Almost surely, 2^3639133 is an apocalyptic number.

It is an amenable number.

3639133 is a deficient number, since it is larger than the sum of its proper divisors (84675).

3639133 is an equidigital number, since it uses as much as digits as its factorization.

3639133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84674.

The product of its digits is 4374, while the sum is 28.

The square root of 3639133 is about 1907.6511735640. The cubic root of 3639133 is about 153.8152194278.

The spelling of 3639133 in words is "three million, six hundred thirty-nine thousand, one hundred thirty-three".