6393493 has 4 divisors (see below), whose sum is σ = 6465420. Its totient is φ = 6321568.

The previous prime is 6393473. The next prime is 6393503. The reversal of 6393493 is 3943936.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2365444 + 4028049 = 1538^2 + 2007^2 .

It is a cyclic number.

It is not a de Polignac number, because 6393493 - 2⁵ = 6393461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6393403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35830 + ... + 36007.

It is an arithmetic number, because the mean of its divisors is an integer number (1616355).

Almost surely, 2^6393493 is an apocalyptic number.

It is an amenable number.

6393493 is a deficient number, since it is larger than the sum of its proper divisors (71927).

6393493 is an equidigital number, since it uses as much as digits as its factorization.

6393493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71926.

The product of its digits is 52488, while the sum is 37.

The square root of 6393493 is about 2528.5357422825. The cubic root of 6393493 is about 185.6006094690.

It can be divided in two parts, 6393 and 493, that added together give a palindrome (6886).

The spelling of 6393493 in words is "six million, three hundred ninety-three thousand, four hundred ninety-three".