5631857 has 8 divisors (see below), whose sum is σ = 7021632. Its totient is φ = 4388400.

The previous prime is 5631851. The next prime is 5631889. The reversal of 5631857 is 7581365.

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

It is a cyclic number.

It is not a de Polignac number, because 5631857 - 2⁴ = 5631841 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5631851) 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, 36494 + ... + 36647.

It is an arithmetic number, because the mean of its divisors is an integer number (877704).

Almost surely, 2^5631857 is an apocalyptic number.

It is an amenable number.

5631857 is a deficient number, since it is larger than the sum of its proper divisors (1389775).

5631857 is a wasteful number, since it uses less digits than its factorization.

5631857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73159.

The product of its digits is 25200, while the sum is 35.

The square root of 5631857 is about 2373.1533873730. The cubic root of 5631857 is about 177.9169014129.

It can be divided in two parts, 56 and 31857, that added together give a palindrome (31913).

The spelling of 5631857 in words is "five million, six hundred thirty-one thousand, eight hundred fifty-seven".