3439997217 has 12 divisors (see below), whose sum is σ = 5050342804. Its totient is φ = 2255735520.

The previous prime is 3439997207. The next prime is 3439997219. The reversal of 3439997217 is 7127999343.

3439997217 is a `hidden beast` number, since 34 + 399 + 9 + 7 + 217 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1925542161 + 1514455056 = 43881^2 + 38916^2 .

It is not a de Polignac number, because 3439997217 - 2⁴ = 3439997201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3439997219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3132418 + ... + 3133515.

Almost surely, 2^3439997217 is an apocalyptic number.

It is an amenable number.

3439997217 is a deficient number, since it is larger than the sum of its proper divisors (1610345587).

3439997217 is a wasteful number, since it uses less digits than its factorization.

3439997217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266000 (or 6265997 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 3439997217 is about 58651.4894695778. The cubic root of 3439997217 is about 1509.5680557713.

The spelling of 3439997217 in words is "three billion, four hundred thirty-nine million, nine hundred ninety-seven thousand, two hundred seventeen".