3279806138 has 16 divisors (see below), whose sum is σ = 5803897344. Its totient is φ = 1360288080.

The previous prime is 3279806137. The next prime is 3279806149. The reversal of 3279806138 is 8316089723.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3279806092 and 3279806101.

It is not an unprimeable number, because it can be changed into a prime (3279806137) 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, 3778145 + ... + 3779012.

It is an arithmetic number, because the mean of its divisors is an integer number (362743584).

Almost surely, 2^3279806138 is an apocalyptic number.

3279806138 is a deficient number, since it is larger than the sum of its proper divisors (2524091206).

3279806138 is a wasteful number, since it uses less digits than its factorization.

3279806138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557197.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 3279806138 is about 57269.5917394214. The cubic root of 3279806138 is about 1485.7624955008.

The spelling of 3279806138 in words is "three billion, two hundred seventy-nine million, eight hundred six thousand, one hundred thirty-eight".