675861 has 4 divisors (see below), whose sum is σ = 901152. Its totient is φ = 450572.

The previous prime is 675859. The next prime is 675863. The reversal of 675861 is 168576.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (675859) and next prime (675863).

It is a cyclic number.

It is not a de Polignac number, because 675861 - 2¹ = 675859 is a prime.

It is a D-number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112641 + ... + 112646.

It is an arithmetic number, because the mean of its divisors is an integer number (225288).

2⁶⁷⁵⁸⁶¹ is an apocalyptic number.

It is an amenable number.

675861 is a deficient number, since it is larger than the sum of its proper divisors (225291).

675861 is a wasteful number, since it uses less digits than its factorization.

675861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225290.

The product of its digits is 10080, while the sum is 33.

The square root of 675861 is about 822.1076571837. The cubic root of 675861 is about 87.7578137700.

The spelling of 675861 in words is "six hundred seventy-five thousand, eight hundred sixty-one".