6923993 has 4 divisors (see below), whose sum is σ = 7071360. Its totient is φ = 6776628.

The previous prime is 6923971. The next prime is 6924013. The reversal of 6923993 is 3993296.

It is a happy number.

6923993 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 6923993 - 2⁶ = 6923929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6923993.

It is not an unprimeable number, because it can be changed into a prime (6923593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73613 + ... + 73706.

It is an arithmetic number, because the mean of its divisors is an integer number (1767840).

Almost surely, 2^6923993 is an apocalyptic number.

It is an amenable number.

6923993 is a deficient number, since it is larger than the sum of its proper divisors (147367).

6923993 is a wasteful number, since it uses less digits than its factorization.

6923993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147366.

The product of its digits is 78732, while the sum is 41.

The square root of 6923993 is about 2631.3481335620. The cubic root of 6923993 is about 190.5982344576.

The spelling of 6923993 in words is "six million, nine hundred twenty-three thousand, nine hundred ninety-three".