339855689 has 2 divisors, whose sum is σ = 339855690. Its totient is φ = 339855688.

The previous prime is 339855599. The next prime is 339855707. The reversal of 339855689 is 986558933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275294464 + 64561225 = 16592^2 + 8035^2 .

It is a cyclic number.

It is not a de Polignac number, because 339855689 - 2¹² = 339851593 is a prime.

It is not a weakly prime, because it can be changed into another prime (339855389) 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 as a sum of consecutive naturals, namely, 169927844 + 169927845.

It is an arithmetic number, because the mean of its divisors is an integer number (169927845).

Almost surely, 2^339855689 is an apocalyptic number.

It is an amenable number.

339855689 is a deficient number, since it is larger than the sum of its proper divisors (1).

339855689 is an equidigital number, since it uses as much as digits as its factorization.

339855689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 56.

The square root of 339855689 is about 18435.1753178536. The cubic root of 339855689 is about 697.8544433393.

The spelling of 339855689 in words is "three hundred thirty-nine million, eight hundred fifty-five thousand, six hundred eighty-nine".