338779 has 4 divisors (see below), whose sum is σ = 387184. Its totient is φ = 290376.

The previous prime is 338777. The next prime is 338791. The reversal of 338779 is 977833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977833 = 31 ⋅31543.

It is a cyclic number.

It is not a de Polignac number, because 338779 - 2¹ = 338777 is a prime.

It is a super-2 number, since 2×338779² = 229542421682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24192 + ... + 24205.

It is an arithmetic number, because the mean of its divisors is an integer number (96796).

2³³⁸⁷⁷⁹ is an apocalyptic number.

338779 is a deficient number, since it is larger than the sum of its proper divisors (48405).

338779 is an equidigital number, since it uses as much as digits as its factorization.

338779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48404.

The product of its digits is 31752, while the sum is 37.

The square root of 338779 is about 582.0472489412. The cubic root of 338779 is about 69.7116711517.

The spelling of 338779 in words is "three hundred thirty-eight thousand, seven hundred seventy-nine".