596639 has 4 divisors (see below), whose sum is σ = 598224. Its totient is φ = 595056.

The previous prime is 596633. The next prime is 596653. The reversal of 596639 is 936695.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 936695 = 5 ⋅187339.

It is a cyclic number.

It is not a de Polignac number, because 596639 - 2⁴ = 596623 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 (596633) 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, 134 + ... + 1100.

It is an arithmetic number, because the mean of its divisors is an integer number (149556).

2⁵⁹⁶⁶³⁹ is an apocalyptic number.

596639 is a deficient number, since it is larger than the sum of its proper divisors (1585).

596639 is an equidigital number, since it uses as much as digits as its factorization.

596639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584.

The product of its digits is 43740, while the sum is 38.

The square root of 596639 is about 772.4241063043. The cubic root of 596639 is about 84.1854839257.

The spelling of 596639 in words is "five hundred ninety-six thousand, six hundred thirty-nine".