339904387 has 2 divisors, whose sum is σ = 339904388. Its totient is φ = 339904386.

The previous prime is 339904381. The next prime is 339904399. The reversal of 339904387 is 783409933.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-339904387 is a prime.

It is not a weakly prime, because it can be changed into another prime (339904381) 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, 169952193 + 169952194.

It is an arithmetic number, because the mean of its divisors is an integer number (169952194).

Almost surely, 2^339904387 is an apocalyptic number.

339904387 is a deficient number, since it is larger than the sum of its proper divisors (1).

339904387 is an equidigital number, since it uses as much as digits as its factorization.

339904387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 339904387 is about 18436.4960608029. The cubic root of 339904387 is about 697.8877736554.

The spelling of 339904387 in words is "three hundred thirty-nine million, nine hundred four thousand, three hundred eighty-seven".