6928993 has 4 divisors (see below), whose sum is σ = 6983680. Its totient is φ = 6874308.

The previous prime is 6928973. The next prime is 6929009. The reversal of 6928993 is 3998296.

It is a happy number.

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 6928993 - 2¹³ = 6920801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6928973) 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, 27153 + ... + 27406.

It is an arithmetic number, because the mean of its divisors is an integer number (1745920).

Almost surely, 2^6928993 is an apocalyptic number.

It is an amenable number.

6928993 is a deficient number, since it is larger than the sum of its proper divisors (54687).

6928993 is a wasteful number, since it uses less digits than its factorization.

6928993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54686.

The product of its digits is 209952, while the sum is 46.

The square root of 6928993 is about 2632.2980454348. The cubic root of 6928993 is about 190.6441021080.

It can be divided in two parts, 6928 and 993, that added together give a square (7921 = 89²).

The spelling of 6928993 in words is "six million, nine hundred twenty-eight thousand, nine hundred ninety-three".