675811 has 4 divisors (see below), whose sum is σ = 711400. Its totient is φ = 640224.

The previous prime is 675797. The next prime is 675817. The reversal of 675811 is 118576.

It is a happy number.

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

It is not a de Polignac number, because 675811 - 2⁹ = 675299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 675811.

It is not an unprimeable number, because it can be changed into a prime (675817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17766 + ... + 17803.

It is an arithmetic number, because the mean of its divisors is an integer number (177850).

2⁶⁷⁵⁸¹¹ is an apocalyptic number.

675811 is a deficient number, since it is larger than the sum of its proper divisors (35589).

675811 is a wasteful number, since it uses less digits than its factorization.

675811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35588.

The product of its digits is 1680, while the sum is 28.

The square root of 675811 is about 822.0772469787. The cubic root of 675811 is about 87.7556496174.

The spelling of 675811 in words is "six hundred seventy-five thousand, eight hundred eleven".