3898647 has 12 divisors (see below), whose sum is σ = 5660824. Its totient is φ = 2585520.

The previous prime is 3898639. The next prime is 3898651. The reversal of 3898647 is 7468983.

It is a happy number.

It is not a de Polignac number, because 3898647 - 2³ = 3898639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 873 + ... + 2925.

Almost surely, 2^3898647 is an apocalyptic number.

3898647 is a deficient number, since it is larger than the sum of its proper divisors (1762177).

3898647 is a wasteful number, since it uses less digits than its factorization.

3898647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270 (or 2267 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 3898647 is about 1974.4991770067. The cubic root of 3898647 is about 157.3878869559.

The spelling of 3898647 in words is "three million, eight hundred ninety-eight thousand, six hundred forty-seven".