340704685 has 4 divisors (see below), whose sum is σ = 408845628. Its totient is φ = 272563744.

The previous prime is 340704677. The next prime is 340704691. The reversal of 340704685 is 586407043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220166244 + 120538441 = 14838^2 + 10979^2 .

It is a cyclic number.

It is not a de Polignac number, because 340704685 - 2³ = 340704677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34070464 + ... + 34070473.

It is an arithmetic number, because the mean of its divisors is an integer number (102211407).

Almost surely, 2^340704685 is an apocalyptic number.

It is an amenable number.

340704685 is a deficient number, since it is larger than the sum of its proper divisors (68140943).

340704685 is an equidigital number, since it uses as much as digits as its factorization.

340704685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68140942.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 340704685 is about 18458.1874787315. The cubic root of 340704685 is about 698.4350652305.

The spelling of 340704685 in words is "three hundred forty million, seven hundred four thousand, six hundred eighty-five".