5643907 has 4 divisors (see below), whose sum is σ = 5669440. Its totient is φ = 5618376.

The previous prime is 5643877. The next prime is 5643919. The reversal of 5643907 is 7093465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7093465 = 5 ⋅1418693.

It is a cyclic number.

It is not a de Polignac number, because 5643907 - 2¹¹ = 5641859 is a prime.

It is an Ulam number.

It is a Duffinian number.

5643907 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5643307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12432 + ... + 12877.

It is an arithmetic number, because the mean of its divisors is an integer number (1417360).

Almost surely, 2^5643907 is an apocalyptic number.

5643907 is a deficient number, since it is larger than the sum of its proper divisors (25533).

5643907 is a wasteful number, since it uses less digits than its factorization.

5643907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25532.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 5643907 is about 2375.6908468906. The cubic root of 5643907 is about 178.0437021845.

The spelling of 5643907 in words is "five million, six hundred forty-three thousand, nine hundred seven".