5643633 has 4 divisors (see below), whose sum is σ = 7524848. Its totient is φ = 3762420.

The previous prime is 5643623. The next prime is 5643641. The reversal of 5643633 is 3363465.

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 5643633 - 2⁵ = 5643601 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

5643633 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5643633.

It is not an unprimeable number, because it can be changed into a prime (5643613) 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, 940603 + ... + 940608.

It is an arithmetic number, because the mean of its divisors is an integer number (1881212).

Almost surely, 2^5643633 is an apocalyptic number.

It is an amenable number.

5643633 is a deficient number, since it is larger than the sum of its proper divisors (1881215).

5643633 is a wasteful number, since it uses less digits than its factorization.

5643633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881214.

The product of its digits is 19440, while the sum is 30.

The square root of 5643633 is about 2375.6331787547. The cubic root of 5643633 is about 178.0408209202.

The spelling of 5643633 in words is "five million, six hundred forty-three thousand, six hundred thirty-three".