5687731 has 8 divisors (see below), whose sum is σ = 6516224. Its totient is φ = 4863240.

The previous prime is 5687711. The next prime is 5687743. The reversal of 5687731 is 1377865.

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 5687731 - 2⁵ = 5687699 is a prime.

It is a super-2 number, since 2×5687731² = 64700567856722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5687711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3286 + ... + 4708.

It is an arithmetic number, because the mean of its divisors is an integer number (814528).

Almost surely, 2^5687731 is an apocalyptic number.

5687731 is a deficient number, since it is larger than the sum of its proper divisors (828493).

5687731 is a wasteful number, since it uses less digits than its factorization.

5687731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its digits is 35280, while the sum is 37.

The square root of 5687731 is about 2384.8964338101. The cubic root of 5687731 is about 178.5033411432.

The spelling of 5687731 in words is "five million, six hundred eighty-seven thousand, seven hundred thirty-one".