6355993 has 4 divisors (see below), whose sum is σ = 7264000. Its totient is φ = 5447988.

The previous prime is 6355963. The next prime is 6355997. The reversal of 6355993 is 3995536.

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 6355993 - 2¹³ = 6347801 is a prime.

It is a Duffinian number.

6355993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6355997) 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, 453993 + ... + 454006.

It is an arithmetic number, because the mean of its divisors is an integer number (1816000).

Almost surely, 2^6355993 is an apocalyptic number.

It is an amenable number.

6355993 is a deficient number, since it is larger than the sum of its proper divisors (908007).

6355993 is an equidigital number, since it uses as much as digits as its factorization.

6355993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908006.

The product of its digits is 109350, while the sum is 40.

The square root of 6355993 is about 2521.1094779878. The cubic root of 6355993 is about 185.2370275689.

The spelling of 6355993 in words is "six million, three hundred fifty-five thousand, nine hundred ninety-three".