675613 has 4 divisors (see below), whose sum is σ = 698940. Its totient is φ = 652288.

The previous prime is 675611. The next prime is 675617. The reversal of 675613 is 316576.

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

It can be written as a sum of positive squares in 2 ways, for example, as 195364 + 480249 = 442^2 + 693^2 .

It is a cyclic number.

It is not a de Polignac number, because 675613 - 2¹ = 675611 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675611) 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 3 ways as a sum of consecutive naturals, for example, 11620 + ... + 11677.

It is an arithmetic number, because the mean of its divisors is an integer number (174735).

2⁶⁷⁵⁶¹³ is an apocalyptic number.

It is an amenable number.

675613 is a deficient number, since it is larger than the sum of its proper divisors (23327).

675613 is a wasteful number, since it uses less digits than its factorization.

675613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23326.

The product of its digits is 3780, while the sum is 28.

The square root of 675613 is about 821.9568115175. The cubic root of 675613 is about 87.7470785249.

The spelling of 675613 in words is "six hundred seventy-five thousand, six hundred thirteen".