2128593 has 4 divisors (see below), whose sum is σ = 2838128. Its totient is φ = 1419060.

The previous prime is 2128591. The next prime is 2128601. The reversal of 2128593 is 3958212.

It is a happy number.

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 not a de Polignac number, because 2128593 - 2¹ = 2128591 is a prime.

It is a super-3 number, since 3×2128593³ = 28933378176815231571, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

2128593 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2128593.

It is not an unprimeable number, because it can be changed into a prime (2128591) 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, 354763 + ... + 354768.

It is an arithmetic number, because the mean of its divisors is an integer number (709532).

2^2128593 is an apocalyptic number.

It is an amenable number.

2128593 is a deficient number, since it is larger than the sum of its proper divisors (709535).

2128593 is an equidigital number, since it uses as much as digits as its factorization.

2128593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709534.

The product of its digits is 4320, while the sum is 30.

The square root of 2128593 is about 1458.9698420461. The cubic root of 2128593 is about 128.6364984559.

The spelling of 2128593 in words is "two million, one hundred twenty-eight thousand, five hundred ninety-three".