5643351 has 40 divisors (see below), whose sum is σ = 9931680. Its totient is φ = 3125952.

The previous prime is 5643347. The next prime is 5643373. The reversal of 5643351 is 1533465.

It is not a de Polignac number, because 5643351 - 2² = 5643347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643301) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20845 + ... + 21113.

It is an arithmetic number, because the mean of its divisors is an integer number (248292).

Almost surely, 2^5643351 is an apocalyptic number.

5643351 is a deficient number, since it is larger than the sum of its proper divisors (4288329).

5643351 is a wasteful number, since it uses less digits than its factorization.

5643351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 316 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 5643351 is about 2375.5738254157. The cubic root of 5643351 is about 178.0378554339.

The spelling of 5643351 in words is "five million, six hundred forty-three thousand, three hundred fifty-one".