590621 has 4 divisors (see below), whose sum is σ = 592992. Its totient is φ = 588252.

The previous prime is 590609. The next prime is 590627. The reversal of 590621 is 126095.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 126095 = 5 ⋅25219.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-590621 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 (590627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (148248).

2⁵⁹⁰⁶²¹ is an apocalyptic number.

It is an amenable number.

590621 is a deficient number, since it is larger than the sum of its proper divisors (2371).

590621 is a wasteful number, since it uses less digits than its factorization.

590621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 590621 is about 768.5187050424. The cubic root of 590621 is about 83.9014812480.

The spelling of 590621 in words is "five hundred ninety thousand, six hundred twenty-one".