3898389 has 16 divisors (see below), whose sum is σ = 6004800. Its totient is φ = 2223360.

The previous prime is 3898379. The next prime is 3898393. The reversal of 3898389 is 9838983.

It is not a de Polignac number, because 3898389 - 2⁴ = 3898373 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2914 + ... + 4035.

It is an arithmetic number, because the mean of its divisors is an integer number (375300).

Almost surely, 2^3898389 is an apocalyptic number.

It is an amenable number.

3898389 is a deficient number, since it is larger than the sum of its proper divisors (2106411).

3898389 is a wasteful number, since it uses less digits than its factorization.

3898389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980.

The product of its digits is 373248, while the sum is 48.

The square root of 3898389 is about 1974.4338429028. The cubic root of 3898389 is about 157.3844150702.

It can be divided in two parts, 389 and 8389, that added together give a palindrome (8778).

The spelling of 3898389 in words is "three million, eight hundred ninety-eight thousand, three hundred eighty-nine".