3172389609 has 16 divisors (see below), whose sum is σ = 4415064192. Its totient is φ = 2022375168.

The previous prime is 3172389593. The next prime is 3172389611. The reversal of 3172389609 is 9069832713.

It is not a de Polignac number, because 3172389609 - 2⁴ = 3172389593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3172389679) 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, 434739 + ... + 441975.

It is an arithmetic number, because the mean of its divisors is an integer number (275941512).

Almost surely, 2^3172389609 is an apocalyptic number.

It is an amenable number.

3172389609 is a deficient number, since it is larger than the sum of its proper divisors (1242674583).

3172389609 is a wasteful number, since it uses less digits than its factorization.

3172389609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13616.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 3172389609 is about 56323.9701104246. The cubic root of 3172389609 is about 1469.3621199300.

The spelling of 3172389609 in words is "three billion, one hundred seventy-two million, three hundred eighty-nine thousand, six hundred nine".