590721 has 4 divisors (see below), whose sum is σ = 787632. Its totient is φ = 393812.

The previous prime is 590719. The next prime is 590741. The reversal of 590721 is 127095.

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.

It is a cyclic number.

It is not a de Polignac number, because 590721 - 2¹ = 590719 is a prime.

It is a D-number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 590691 and 590700.

It is not an unprimeable number, because it can be changed into a prime (590741) 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, 98451 + ... + 98456.

It is an arithmetic number, because the mean of its divisors is an integer number (196908).

2⁵⁹⁰⁷²¹ is an apocalyptic number.

It is an amenable number.

590721 is a deficient number, since it is larger than the sum of its proper divisors (196911).

590721 is a wasteful number, since it uses less digits than its factorization.

590721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196910.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 590721 is about 768.5837625139. The cubic root of 590721 is about 83.9062161935.

The spelling of 590721 in words is "five hundred ninety thousand, seven hundred twenty-one".