5726731 has 4 divisors (see below), whose sum is σ = 5749272. Its totient is φ = 5704192.

The previous prime is 5726729. The next prime is 5726761. The reversal of 5726731 is 1376275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5726731 - 2¹ = 5726729 is a prime.

It is a super-2 number, since 2×5726731² = 65590895892722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5726693 and 5726702.

It is not an unprimeable number, because it can be changed into a prime (5726711) 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, 10885 + ... + 11398.

It is an arithmetic number, because the mean of its divisors is an integer number (1437318).

Almost surely, 2^5726731 is an apocalyptic number.

5726731 is a deficient number, since it is larger than the sum of its proper divisors (22541).

5726731 is a wasteful number, since it uses less digits than its factorization.

5726731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22540.

The product of its digits is 8820, while the sum is 31.

The square root of 5726731 is about 2393.0589211300. The cubic root of 5726731 is about 178.9104032324.

The spelling of 5726731 in words is "five million, seven hundred twenty-six thousand, seven hundred thirty-one".