5643775 has 6 divisors (see below), whose sum is σ = 6998312. Its totient is φ = 4515000.

The previous prime is 5643769. The next prime is 5643787. The reversal of 5643775 is 5773465.

It is not a de Polignac number, because 5643775 - 2⁹ = 5643263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112851 + ... + 112900.

Almost surely, 2^5643775 is an apocalyptic number.

5643775 is a deficient number, since it is larger than the sum of its proper divisors (1354537).

5643775 is a wasteful number, since it uses less digits than its factorization.

5643775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225761 (or 225756 counting only the distinct ones).

The product of its digits is 88200, while the sum is 37.

The square root of 5643775 is about 2375.6630653357. The cubic root of 5643775 is about 178.0423141418.

The spelling of 5643775 in words is "five million, six hundred forty-three thousand, seven hundred seventy-five".