3172280329 has 9 divisors (see below), whose sum is σ = 3202012359. Its totient is φ = 3142823400.

The previous prime is 3172280327. The next prime is 3172280339. The reversal of 3172280329 is 9230822713.

The square root of 3172280329 is 56323.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1724325625 + 1447954704 = 41525^2 + 38052^2 .

It is not a de Polignac number, because 3172280329 - 2¹ = 3172280327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3172280327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8504587 + ... + 8504959.

It is an arithmetic number, because the mean of its divisors is an integer number (355779151).

Almost surely, 2^3172280329 is an apocalyptic number.

3172280329 is the 56323-rd square number.

3172280329 is the 28162-nd centered octagonal number.

It is an amenable number.

3172280329 is a deficient number, since it is larger than the sum of its proper divisors (29732030).

3172280329 is an frugal number, since it uses more digits than its factorization.

3172280329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The cubic root of 3172280329 is about 1469.3452479233.

The spelling of 3172280329 in words is "three billion, one hundred seventy-two million, two hundred eighty thousand, three hundred twenty-nine".