3279649321 has 12 divisors (see below), whose sum is σ = 3578469840. Its totient is φ = 3004238640.

The previous prime is 3279649297. The next prime is 3279649339. The reversal of 3279649321 is 1239469723.

It is not a de Polignac number, because 3279649321 - 2¹⁵ = 3279616553 is a prime.

It is a super-2 number, since 2×3279649321² = 21512199337471522082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3279649921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51931 + ... + 96208.

It is an arithmetic number, because the mean of its divisors is an integer number (298205820).

Almost surely, 2^3279649321 is an apocalyptic number.

It is an amenable number.

3279649321 is a deficient number, since it is larger than the sum of its proper divisors (298820519).

3279649321 is a wasteful number, since it uses less digits than its factorization.

3279649321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148296 (or 148283 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The square root of 3279649321 is about 57268.2226107987. Note that the first 3 decimals coincide. The cubic root of 3279649321 is about 1485.7388155920.

The spelling of 3279649321 in words is "three billion, two hundred seventy-nine million, six hundred forty-nine thousand, three hundred twenty-one".