290593 has 2 divisors, whose sum is σ = 290594. Its totient is φ = 290592.

The previous prime is 290557. The next prime is 290597. The reversal of 290593 is 395092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283024 + 7569 = 532^2 + 87^2 .

It is a cyclic number.

It is not a de Polignac number, because 290593 - 2¹⁷ = 159521 is a prime.

290593 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (290597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145296 + 145297.

It is an arithmetic number, because the mean of its divisors is an integer number (145297).

2²⁹⁰⁵⁹³ is an apocalyptic number.

It is an amenable number.

290593 is a deficient number, since it is larger than the sum of its proper divisors (1).

290593 is an equidigital number, since it uses as much as digits as its factorization.

290593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 290593 is about 539.0667862148. The cubic root of 290593 is about 66.2361451982.

The spelling of 290593 in words is "two hundred ninety thousand, five hundred ninety-three".