3279428812 has 24 divisors (see below), whose sum is σ = 6262501392. Its totient is φ = 1490227200.

The previous prime is 3279428797. The next prime is 3279428813. The reversal of 3279428812 is 2188249723.

It is not an unprimeable number, because it can be changed into a prime (3279428813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188848 + ... + 205480.

It is an arithmetic number, because the mean of its divisors is an integer number (260937558).

Almost surely, 2^3279428812 is an apocalyptic number.

It is an amenable number.

3279428812 is a deficient number, since it is larger than the sum of its proper divisors (2983072580).

3279428812 is a wasteful number, since it uses less digits than its factorization.

3279428812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21129 (or 21127 counting only the distinct ones).

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

The square root of 3279428812 is about 57266.2973484405. The cubic root of 3279428812 is about 1485.7055166942.

Subtracting from 3279428812 its reverse (2188249723), we obtain a square (1091179089 = 33033²).

The spelling of 3279428812 in words is "three billion, two hundred seventy-nine million, four hundred twenty-eight thousand, eight hundred twelve".