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6923 = 72343
BaseRepresentation
bin1101100001011
3100111102
41230023
5210143
652015
726120
oct15413
910442
106923
115224
12400b
1331c7
142747
1520b8
hex1b0b

6923 has 8 divisors (see below), whose sum is σ = 8448. Its totient is φ = 5544.

The previous prime is 6917. The next prime is 6947. The reversal of 6923 is 3296.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6923 - 24 = 6907 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6895 and 6904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140 + ... + 182.

It is an arithmetic number, because the mean of its divisors is an integer number (1056).

6923 is a deficient number, since it is larger than the sum of its proper divisors (1525).

6923 is a wasteful number, since it uses less digits than its factorization.

6923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73.

The product of its digits is 324, while the sum is 20.

The square root of 6923 is about 83.2045671823. The cubic root of 6923 is about 19.0589122514.

Subtracting from 6923 its sum of digits (20), we obtain a triangular number (6903 = T117).

It can be divided in two parts, 6 and 923, that added together give a palindrome (929).

The spelling of 6923 in words is "six thousand, nine hundred twenty-three".

Divisors: 1 7 23 43 161 301 989 6923