3489949217 has 16 divisors (see below), whose sum is σ = 3631910400. Its totient is φ = 3349931520.

The previous prime is 3489949181. The next prime is 3489949277. The reversal of 3489949217 is 7129499843.

It is a cyclic number.

It is not a de Polignac number, because 3489949217 - 2²⁰ = 3488900641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3489949277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3756209 + ... + 3757137.

It is an arithmetic number, because the mean of its divisors is an integer number (226994400).

Almost surely, 2^3489949217 is an apocalyptic number.

It is an amenable number.

3489949217 is a deficient number, since it is larger than the sum of its proper divisors (141961183).

3489949217 is a wasteful number, since it uses less digits than its factorization.

3489949217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816.

The product of its digits is 3919104, while the sum is 56.

The square root of 3489949217 is about 59075.7921402667. The cubic root of 3489949217 is about 1516.8397546101.

The spelling of 3489949217 in words is "three billion, four hundred eighty-nine million, nine hundred forty-nine thousand, two hundred seventeen".