3217130784 has 240 divisors, whose sum is σ = 10868812416. Its totient is φ = 914457600.

The previous prime is 3217130783. The next prime is 3217130821. The reversal of 3217130784 is 4870317123.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3217130783) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5098149 + ... + 5098779.

Almost surely, 2^3217130784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3217130784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5434406208).

3217130784 is an abundant number, since it is smaller than the sum of its proper divisors (7651681632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3217130784 is a wasteful number, since it uses less digits than its factorization.

3217130784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 3217130784 is about 56719.7565580107. The cubic root of 3217130784 is about 1476.2375187860.

The spelling of 3217130784 in words is "three billion, two hundred seventeen million, one hundred thirty thousand, seven hundred eighty-four".