3213944705 has 8 divisors (see below), whose sum is σ = 3857186304. Its totient is φ = 2570854000.

The previous prime is 3213944693. The next prime is 3213944737. The reversal of 3213944705 is 5074493123.

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

It is not a de Polignac number, because 3213944705 - 2⁴ = 3213944689 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 16130 + ... + 81780.

It is an arithmetic number, because the mean of its divisors is an integer number (482148288).

Almost surely, 2^3213944705 is an apocalyptic number.

It is an amenable number.

3213944705 is a deficient number, since it is larger than the sum of its proper divisors (643241599).

3213944705 is an equidigital number, since it uses as much as digits as its factorization.

3213944705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75447.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 3213944705 is about 56691.6634523984. The cubic root of 3213944705 is about 1475.7500282031.

The spelling of 3213944705 in words is "three billion, two hundred thirteen million, nine hundred forty-four thousand, seven hundred five".