675557 has 4 divisors (see below), whose sum is σ = 692076. Its totient is φ = 659040.

The previous prime is 675553. The next prime is 675559. The reversal of 675557 is 755576.

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 111556 + 564001 = 334^2 + 751^2 .

It is a cyclic number.

It is not a de Polignac number, because 675557 - 2² = 675553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675551) 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, 8198 + ... + 8279.

It is an arithmetic number, because the mean of its divisors is an integer number (173019).

2⁶⁷⁵⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

675557 is a deficient number, since it is larger than the sum of its proper divisors (16519).

675557 is a wasteful number, since it uses less digits than its factorization.

675557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16518.

The product of its digits is 36750, while the sum is 35.

The square root of 675557 is about 821.9227457614. The cubic root of 675557 is about 87.7446540738.

The spelling of 675557 in words is "six hundred seventy-five thousand, five hundred fifty-seven".