5728731 has 8 divisors (see below), whose sum is σ = 7654464. Its totient is φ = 3811080.

The previous prime is 5728729. The next prime is 5728733. The reversal of 5728731 is 1378275.

It is an interprime number because it is at equal distance from previous prime (5728729) and next prime (5728733).

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

It is not a de Polignac number, because 5728731 - 2¹ = 5728729 is a prime.

It is a super-2 number, since 2×5728731² = 65636717740722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5728692 and 5728701.

It is not an unprimeable number, because it can be changed into a prime (5728733) 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, 105 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (956808).

Almost surely, 2^5728731 is an apocalyptic number.

5728731 is a deficient number, since it is larger than the sum of its proper divisors (1925733).

5728731 is a wasteful number, since it uses less digits than its factorization.

5728731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041.

The product of its digits is 11760, while the sum is 33.

The square root of 5728731 is about 2393.4767598621. The cubic root of 5728731 is about 178.9312283279.

The spelling of 5728731 in words is "five million, seven hundred twenty-eight thousand, seven hundred thirty-one".