5645831 has 8 divisors (see below), whose sum is σ = 5982720. Its totient is φ = 5312952.

The previous prime is 5645779. The next prime is 5645851. The reversal of 5645831 is 1385465.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5645831 is a prime.

It is a super-2 number, since 2×5645831² = 63750815361122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186 + ... + 4008.

It is an arithmetic number, because the mean of its divisors is an integer number (747840).

Almost surely, 2^5645831 is an apocalyptic number.

5645831 is a deficient number, since it is larger than the sum of its proper divisors (336889).

5645831 is a wasteful number, since it uses less digits than its factorization.

5645831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its digits is 14400, while the sum is 32.

The square root of 5645831 is about 2376.0957472291. The cubic root of 5645831 is about 178.0639315023.

The spelling of 5645831 in words is "five million, six hundred forty-five thousand, eight hundred thirty-one".