3897539249 has 16 divisors (see below), whose sum is σ = 4078480896. Its totient is φ = 3721804800.

The previous prime is 3897539237. The next prime is 3897539279. The reversal of 3897539249 is 9429357983.

It is a cyclic number.

It is not a de Polignac number, because 3897539249 - 2²⁴ = 3880762033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3897539279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317669 + ... + 329709.

It is an arithmetic number, because the mean of its divisors is an integer number (254905056).

Almost surely, 2^3897539249 is an apocalyptic number.

It is an amenable number.

3897539249 is a deficient number, since it is larger than the sum of its proper divisors (180941647).

3897539249 is a wasteful number, since it uses less digits than its factorization.

3897539249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256.

The product of its digits is 14696640, while the sum is 59.

The square root of 3897539249 is about 62430.2750995060. The cubic root of 3897539249 is about 1573.7297895451.

The spelling of 3897539249 in words is "three billion, eight hundred ninety-seven million, five hundred thirty-nine thousand, two hundred forty-nine".