595666 has 4 divisors (see below), whose sum is σ = 893502. Its totient is φ = 297832.

The previous prime is 595627. The next prime is 595687. The reversal of 595666 is 666595.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666595 = 5 ⋅133319.

It can be written as a sum of positive squares in only one way, i.e., 594441 + 1225 = 771^2 + 35^2 .

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148915 + ... + 148918.

2⁵⁹⁵⁶⁶⁶ is an apocalyptic number.

595666 is a deficient number, since it is larger than the sum of its proper divisors (297836).

595666 is a wasteful number, since it uses less digits than its factorization.

595666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297835.

The product of its digits is 48600, while the sum is 37.

The square root of 595666 is about 771.7940139700. The cubic root of 595666 is about 84.1396957445.

The spelling of 595666 in words is "five hundred ninety-five thousand, six hundred sixty-six".