590921 has 2 divisors, whose sum is σ = 590922. Its totient is φ = 590920.

The previous prime is 590899. The next prime is 590923. The reversal of 590921 is 129095.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 583696 + 7225 = 764^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 590921 - 2¹⁸ = 328777 is a prime.

Together with 590923, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 590921.

It is not a weakly prime, because it can be changed into another prime (590923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295460 + 295461.

It is an arithmetic number, because the mean of its divisors is an integer number (295461).

2⁵⁹⁰⁹²¹ is an apocalyptic number.

It is an amenable number.

590921 is a deficient number, since it is larger than the sum of its proper divisors (1).

590921 is an equidigital number, since it uses as much as digits as its factorization.

590921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 590921 is about 768.7138609392. The cubic root of 590921 is about 83.9156844815.

The spelling of 590921 in words is "five hundred ninety thousand, nine hundred twenty-one".