3439272985 has 4 divisors (see below), whose sum is σ = 4127127588. Its totient is φ = 2751418384.

The previous prime is 3439272943. The next prime is 3439272989. The reversal of 3439272985 is 5892729343.

3439272985 = 41468² + 41469².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5892729343 = 769 ⋅7662847.

It can be written as a sum of positive squares in 2 ways, for example, as 1719595024 + 1719677961 = 41468^2 + 41469^2 .

It is a cyclic number.

It is not a de Polignac number, because 3439272985 - 2¹⁷ = 3439141913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3439272989) by changing a digit.

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, 343927294 + ... + 343927303.

It is an arithmetic number, because the mean of its divisors is an integer number (1031781897).

Almost surely, 2^3439272985 is an apocalyptic number.

3439272985 is the 41469-th centered square number.

It is an amenable number.

3439272985 is a deficient number, since it is larger than the sum of its proper divisors (687854603).

3439272985 is an equidigital number, since it uses as much as digits as its factorization.

3439272985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687854602.

The product of its digits is 3265920, while the sum is 52.

The square root of 3439272985 is about 58645.3151155316. The cubic root of 3439272985 is about 1509.4621105087.

The spelling of 3439272985 in words is "three billion, four hundred thirty-nine million, two hundred seventy-two thousand, nine hundred eighty-five".