3897130329 has 9 divisors (see below), whose sum is σ = 5629458783. Its totient is φ = 2597962032.

The previous prime is 3897130199. The next prime is 3897130343. The reversal of 3897130329 is 9230317983.

The square root of 3897130329 is 62427.

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., 981130329 + 2916000000 = 31323^2 + 54000^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 3897130329 - 2¹³ = 3897122137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3897130529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 176877 + ... + 197685.

Almost surely, 2^3897130329 is an apocalyptic number.

3897130329 is the 62427-th square number.

3897130329 is the 31214-th centered octagonal number.

It is an amenable number.

3897130329 is a deficient number, since it is larger than the sum of its proper divisors (1732328454).

3897130329 is an frugal number, since it uses more digits than its factorization.

3897130329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41624 (or 20812 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The cubic root of 3897130329 is about 1573.6747503651.

The spelling of 3897130329 in words is "three billion, eight hundred ninety-seven million, one hundred thirty thousand, three hundred twenty-nine".