675731 has 8 divisors (see below), whose sum is σ = 793440. Its totient is φ = 563328.

The previous prime is 675713. The next prime is 675739. The reversal of 675731 is 137576.

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 675731 - 2¹⁸ = 413587 is a prime.

It is a super-2 number, since 2×675731² = 913224768722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 675694 and 675703.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 675731.

It is not an unprimeable number, because it can be changed into a prime (675739) 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 7 ways as a sum of consecutive naturals, for example, 1046 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (99180).

2⁶⁷⁵⁷³¹ is an apocalyptic number.

675731 is a deficient number, since it is larger than the sum of its proper divisors (117709).

675731 is a wasteful number, since it uses less digits than its factorization.

675731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653.

The product of its digits is 4410, while the sum is 29.

The square root of 675731 is about 822.0285883106. The cubic root of 675731 is about 87.7521867513.

The spelling of 675731 in words is "six hundred seventy-five thousand, seven hundred thirty-one".