338723 has 16 divisors (see below), whose sum is σ = 435456. Its totient is φ = 255840.

The previous prime is 338717. The next prime is 338731. The reversal of 338723 is 327833.

It is a Cunningham number, because it is equal to 582²-1.

It is a cyclic number.

It is not a de Polignac number, because 338723 - 2⁴ = 338707 is a prime.

It is a super-2 number, since 2×338723² = 229466541458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338692 and 338701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4040 + ... + 4122.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2³³⁸⁷²³ is an apocalyptic number.

338723 is a deficient number, since it is larger than the sum of its proper divisors (96733).

338723 is a wasteful number, since it uses less digits than its factorization.

338723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154.

The product of its digits is 3024, while the sum is 26.

The square root of 338723 is about 581.9991408928. Note that the first 3 decimals coincide. The cubic root of 338723 is about 69.7078298385.

The spelling of 338723 in words is "three hundred thirty-eight thousand, seven hundred twenty-three".