3897549 has 6 divisors (see below), whose sum is σ = 5629806. Its totient is φ = 2598360.

The previous prime is 3897521. The next prime is 3897559. The reversal of 3897549 is 9457983.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 381924 = 1875^2 + 618^2 .

It is not a de Polignac number, because 3897549 - 2¹⁵ = 3864781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216522 + ... + 216539.

It is an arithmetic number, because the mean of its divisors is an integer number (938301).

Almost surely, 2^3897549 is an apocalyptic number.

It is an amenable number.

3897549 is a deficient number, since it is larger than the sum of its proper divisors (1732257).

3897549 is a wasteful number, since it uses less digits than its factorization.

3897549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433067 (or 433064 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3897549 is about 1974.2211122364. The cubic root of 3897549 is about 157.3731101948.

The spelling of 3897549 in words is "three million, eight hundred ninety-seven thousand, five hundred forty-nine".