6925993 has 4 divisors (see below), whose sum is σ = 7113220. Its totient is φ = 6738768.

The previous prime is 6925973. The next prime is 6925999. The reversal of 6925993 is 3995296.

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 3193369 + 3732624 = 1787^2 + 1932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6925993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6925999) 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, 93558 + ... + 93631.

It is an arithmetic number, because the mean of its divisors is an integer number (1778305).

Almost surely, 2^6925993 is an apocalyptic number.

It is an amenable number.

6925993 is a deficient number, since it is larger than the sum of its proper divisors (187227).

6925993 is a wasteful number, since it uses less digits than its factorization.

6925993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187226.

The product of its digits is 131220, while the sum is 43.

The square root of 6925993 is about 2631.7281394551. The cubic root of 6925993 is about 190.6165841667.

It can be divided in two parts, 69 and 25993, that added together give a palindrome (26062).

The spelling of 6925993 in words is "six million, nine hundred twenty-five thousand, nine hundred ninety-three".