401593 has 2 divisors, whose sum is σ = 401594. Its totient is φ = 401592.

The previous prime is 401587. The next prime is 401627. The reversal of 401593 is 395104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393129 + 8464 = 627^2 + 92^2 .

It is a cyclic number.

It is not a de Polignac number, because 401593 - 2¹³ = 393401 is a prime.

It is a super-2 number, since 2×401593² = 322553875298, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (401393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200796 + 200797.

It is an arithmetic number, because the mean of its divisors is an integer number (200797).

2⁴⁰¹⁵⁹³ is an apocalyptic number.

It is an amenable number.

401593 is a deficient number, since it is larger than the sum of its proper divisors (1).

401593 is an equidigital number, since it uses as much as digits as its factorization.

401593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 401593 is about 633.7136577351. The cubic root of 401593 is about 73.7783114515.

Adding to 401593 its reverse (395104), we get a palindrome (796697).

The spelling of 401593 in words is "four hundred one thousand, five hundred ninety-three".