3898867 has 4 divisors (see below), whose sum is σ = 4455856. Its totient is φ = 3341880.

The previous prime is 3898841. The next prime is 3898871. The reversal of 3898867 is 7688983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3898867 - 2¹¹ = 3896819 is a prime.

It is a Duffinian number.

3898867 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3898867.

It is not an unprimeable number, because it can be changed into a prime (3895867) 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 3 ways as a sum of consecutive naturals, for example, 278484 + ... + 278497.

It is an arithmetic number, because the mean of its divisors is an integer number (1113964).

Almost surely, 2^3898867 is an apocalyptic number.

3898867 is a deficient number, since it is larger than the sum of its proper divisors (556989).

3898867 is an equidigital number, since it uses as much as digits as its factorization.

3898867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556988.

The product of its digits is 580608, while the sum is 49.

The square root of 3898867 is about 1974.5548865504. The cubic root of 3898867 is about 157.3908473576.

The spelling of 3898867 in words is "three million, eight hundred ninety-eight thousand, eight hundred sixty-seven".