6654993 has 4 divisors (see below), whose sum is σ = 8873328. Its totient is φ = 4436660.

The previous prime is 6654979. The next prime is 6655001. The reversal of 6654993 is 3994566.

6654993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 6654993 - 2⁵ = 6654961 is a prime.

It is a D-number.

6654993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6654913) 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, 1109163 + ... + 1109168.

It is an arithmetic number, because the mean of its divisors is an integer number (2218332).

Almost surely, 2^6654993 is an apocalyptic number.

It is an amenable number.

6654993 is a deficient number, since it is larger than the sum of its proper divisors (2218335).

6654993 is a wasteful number, since it uses less digits than its factorization.

6654993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218334.

The product of its digits is 174960, while the sum is 42.

The square root of 6654993 is about 2579.7273111707. The cubic root of 6654993 is about 188.0972881849.

The spelling of 6654993 in words is "six million, six hundred fifty-four thousand, nine hundred ninety-three".