675881 has 2 divisors, whose sum is σ = 675882. Its totient is φ = 675880.

The previous prime is 675877. The next prime is 675889. The reversal of 675881 is 188576.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 672400 + 3481 = 820^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 675881 - 2² = 675877 is a prime.

It is a super-2 number, since 2×675881² = 913630252322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 675881.

It is not a weakly prime, because it can be changed into another prime (675889) 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 as a sum of consecutive naturals, namely, 337940 + 337941.

It is an arithmetic number, because the mean of its divisors is an integer number (337941).

2⁶⁷⁵⁸⁸¹ is an apocalyptic number.

It is an amenable number.

675881 is a deficient number, since it is larger than the sum of its proper divisors (1).

675881 is an equidigital number, since it uses as much as digits as its factorization.

675881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 675881 is about 822.1198209507. The cubic root of 675881 is about 87.7586794011.

The spelling of 675881 in words is "six hundred seventy-five thousand, eight hundred eighty-one".