2705683921 has 8 divisors (see below), whose sum is σ = 2774016000. Its totient is φ = 2637800448.

The previous prime is 2705683919. The next prime is 2705683933. The reversal of 2705683921 is 1293865072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2705683921 - 2¹ = 2705683919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2705683901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99921 + ... + 124078.

It is an arithmetic number, because the mean of its divisors is an integer number (346752000).

Almost surely, 2^2705683921 is an apocalyptic number.

It is an amenable number.

2705683921 is a deficient number, since it is larger than the sum of its proper divisors (68332079).

2705683921 is a wasteful number, since it uses less digits than its factorization.

2705683921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224303.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2705683921 is about 52016.1890280324. The cubic root of 2705683921 is about 1393.4530920404.

The spelling of 2705683921 in words is "two billion, seven hundred five million, six hundred eighty-three thousand, nine hundred twenty-one".