599409 has 6 divisors (see below), whose sum is σ = 865826. Its totient is φ = 399600.

The previous prime is 599407. The next prime is 599413. The reversal of 599409 is 904995.

It can be written as a sum of positive squares in only one way, i.e., 567009 + 32400 = 753^2 + 180^2 .

It is not a de Polignac number, because 599409 - 2¹ = 599407 is a prime.

It is a super-2 number, since 2×599409² = 718582298562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (599407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33292 + ... + 33309.

2⁵⁹⁹⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

599409 is a deficient number, since it is larger than the sum of its proper divisors (266417).

599409 is a wasteful number, since it uses less digits than its factorization.

599409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66607 (or 66604 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 599409 is about 774.2150863940. The cubic root of 599409 is about 84.3155647269.

The spelling of 599409 in words is "five hundred ninety-nine thousand, four hundred nine".