6840593 has 4 divisors (see below), whose sum is σ = 6880308. Its totient is φ = 6800880.

The previous prime is 6840583. The next prime is 6840619. The reversal of 6840593 is 3950486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3950486 = 2 ⋅1975243.

It can be written as a sum of positive squares in 2 ways, for example, as 2650384 + 4190209 = 1628^2 + 2047^2 .

It is a cyclic number.

It is not a de Polignac number, because 6840593 - 2⁴ = 6840577 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6840583) 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, 19598 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (1720077).

Almost surely, 2^6840593 is an apocalyptic number.

It is an amenable number.

6840593 is a deficient number, since it is larger than the sum of its proper divisors (39715).

6840593 is a wasteful number, since it uses less digits than its factorization.

6840593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39714.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6840593 is about 2615.4527332758. The cubic root of 6840593 is about 189.8298846682.

The spelling of 6840593 in words is "six million, eight hundred forty thousand, five hundred ninety-three".