3128472829 has 2 divisors, whose sum is σ = 3128472830. Its totient is φ = 3128472828.

The previous prime is 3128472827. The next prime is 3128472833. The reversal of 3128472829 is 9282748213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1810928025 + 1317544804 = 42555^2 + 36298^2 .

It is a cyclic number.

It is not a de Polignac number, because 3128472829 - 2¹ = 3128472827 is a prime.

Together with 3128472827, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3128472827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564236414 + 1564236415.

It is an arithmetic number, because the mean of its divisors is an integer number (1564236415).

Almost surely, 2^3128472829 is an apocalyptic number.

It is an amenable number.

3128472829 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128472829 is an equidigital number, since it uses as much as digits as its factorization.

3128472829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 3128472829 is about 55932.7527393387. The cubic root of 3128472829 is about 1462.5502480021.

The spelling of 3128472829 in words is "three billion, one hundred twenty-eight million, four hundred seventy-two thousand, eight hundred twenty-nine".