3638933 has 4 divisors (see below), whose sum is σ = 3647808. Its totient is φ = 3630060.

The previous prime is 3638923. The next prime is 3638941. The reversal of 3638933 is 3398363.

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 3638933 - 2⁴ = 3638917 is a prime.

It is a super-3 number, since 3×3638933³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3638893 and 3638902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638903) 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, 3791 + ... + 4652.

It is an arithmetic number, because the mean of its divisors is an integer number (911952).

Almost surely, 2^3638933 is an apocalyptic number.

It is an amenable number.

3638933 is a deficient number, since it is larger than the sum of its proper divisors (8875).

3638933 is an equidigital number, since it uses as much as digits as its factorization.

3638933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874.

The product of its digits is 34992, while the sum is 35.

The square root of 3638933 is about 1907.5987523586. The cubic root of 3638933 is about 153.8124015764.

The spelling of 3638933 in words is "three million, six hundred thirty-eight thousand, nine hundred thirty-three".