5645807 has 4 divisors (see below), whose sum is σ = 5840520. Its totient is φ = 5451096.

The previous prime is 5645779. The next prime is 5645851. The reversal of 5645807 is 7085465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7085465 = 5 ⋅1417093.

It is a cyclic number.

It is not a de Polignac number, because 5645807 - 2⁸ = 5645551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645407) 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, 97313 + ... + 97370.

It is an arithmetic number, because the mean of its divisors is an integer number (1460130).

Almost surely, 2^5645807 is an apocalyptic number.

5645807 is a deficient number, since it is larger than the sum of its proper divisors (194713).

5645807 is a wasteful number, since it uses less digits than its factorization.

5645807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194712.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 5645807 is about 2376.0906969222. The cubic root of 5645807 is about 178.0636791898.

The spelling of 5645807 in words is "five million, six hundred forty-five thousand, eight hundred seven".