594991 has 8 divisors (see below), whose sum is σ = 619344. Its totient is φ = 571200.

The previous prime is 594989. The next prime is 595003. The reversal of 594991 is 199495.

594991 = 21² + 22² + ... + 121².

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

It is a cyclic number.

It is not a de Polignac number, because 594991 - 2¹ = 594989 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 594991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (594911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4275 + ... + 4411.

It is an arithmetic number, because the mean of its divisors is an integer number (77418).

2⁵⁹⁴⁹⁹¹ is an apocalyptic number.

594991 is a deficient number, since it is larger than the sum of its proper divisors (24353).

594991 is a wasteful number, since it uses less digits than its factorization.

594991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281.

The product of its digits is 14580, while the sum is 37.

The square root of 594991 is about 771.3565971715. The cubic root of 594991 is about 84.1079017744.

It can be divided in two parts, 59 and 4991, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 594991 in words is "five hundred ninety-four thousand, nine hundred ninety-one".