3997653529 has 9 divisors (see below), whose sum is σ = 4180542303. Its totient is φ = 3822451512.

The previous prime is 3997653503. The next prime is 3997653551. The reversal of 3997653529 is 9253567993.

The square root of 3997653529 is 63227.

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., 476417929 + 3521235600 = 21827^2 + 59340^2 .

It is not a de Polignac number, because 3997653529 - 2⁵ = 3997653497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3997651529) 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, 1452847 + ... + 1455595.

Almost surely, 2^3997653529 is an apocalyptic number.

3997653529 is the 63227-th square number.

3997653529 is the 31614-th centered octagonal number.

It is an amenable number.

3997653529 is a deficient number, since it is larger than the sum of its proper divisors (182888774).

3997653529 is an frugal number, since it uses more digits than its factorization.

3997653529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5544 (or 2772 counting only the distinct ones).

The product of its digits is 13778100, while the sum is 58.

The cubic root of 3997653529 is about 1587.0905920420.

The spelling of 3997653529 in words is "three billion, nine hundred ninety-seven million, six hundred fifty-three thousand, five hundred twenty-nine".