3638433 has 4 divisors (see below), whose sum is σ = 4851248. Its totient is φ = 2425620.

The previous prime is 3638419. The next prime is 3638473. The reversal of 3638433 is 3348363.

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 not a de Polignac number, because 3638433 - 2⁴ = 3638417 is a prime.

It is a D-number.

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 3638433.

It is not an unprimeable number, because it can be changed into a prime (3638413) 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, 606403 + ... + 606408.

It is an arithmetic number, because the mean of its divisors is an integer number (1212812).

Almost surely, 2^3638433 is an apocalyptic number.

It is an amenable number.

3638433 is a deficient number, since it is larger than the sum of its proper divisors (1212815).

3638433 is a wasteful number, since it uses less digits than its factorization.

3638433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212814.

The product of its digits is 15552, while the sum is 30.

The square root of 3638433 is about 1907.4676930423. The cubic root of 3638433 is about 153.8053564963.

The spelling of 3638433 in words is "three million, six hundred thirty-eight thousand, four hundred thirty-three".