675890 has 8 divisors (see below), whose sum is σ = 1216620. Its totient is φ = 270352.

The previous prime is 675889. The next prime is 675923. The reversal of 675890 is 98576.

It can be written as a sum of positive squares in 2 ways, for example, as 674041 + 1849 = 821^2 + 43^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 675890.

It is an unprimeable number.

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, 33785 + ... + 33804.

2⁶⁷⁵⁸⁹⁰ is an apocalyptic number.

675890 is a deficient number, since it is larger than the sum of its proper divisors (540730).

675890 is a wasteful number, since it uses less digits than its factorization.

675890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67596.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 675890 is about 822.1252945871. The cubic root of 675890 is about 87.7590689296.

The spelling of 675890 in words is "six hundred seventy-five thousand, eight hundred ninety".