3428988217 has 4 divisors (see below), whose sum is σ = 3547229220. Its totient is φ = 3310747216.

The previous prime is 3428988191. The next prime is 3428988229. The reversal of 3428988217 is 7128898243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7128898243 = 6353 ⋅1122131.

It can be written as a sum of positive squares in 2 ways, for example, as 1890858256 + 1538129961 = 43484^2 + 39219^2 .

It is a cyclic number.

It is not a de Polignac number, because 3428988217 - 2¹⁵ = 3428955449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3428982217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59120458 + ... + 59120515.

It is an arithmetic number, because the mean of its divisors is an integer number (886807305).

Almost surely, 2^3428988217 is an apocalyptic number.

It is an amenable number.

3428988217 is a deficient number, since it is larger than the sum of its proper divisors (118241003).

3428988217 is a wasteful number, since it uses less digits than its factorization.

3428988217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118241002.

The product of its digits is 1548288, while the sum is 52.

The square root of 3428988217 is about 58557.5632775135. The cubic root of 3428988217 is about 1507.9559813377.

The spelling of 3428988217 in words is "three billion, four hundred twenty-eight million, nine hundred eighty-eight thousand, two hundred seventeen".