3898231 has 4 divisors (see below), whose sum is σ = 3902200. Its totient is φ = 3894264.

The previous prime is 3898207. The next prime is 3898243. The reversal of 3898231 is 1328983.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1328983 = 29 ⋅45827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3898231 is a prime.

It is a super-2 number, since 2×3898231² = 30392409858722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898291) 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, 700 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (975550).

Almost surely, 2^3898231 is an apocalyptic number.

3898231 is a deficient number, since it is larger than the sum of its proper divisors (3969).

3898231 is a wasteful number, since it uses less digits than its factorization.

3898231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968.

The product of its digits is 10368, while the sum is 34.

The square root of 3898231 is about 1974.3938310276. The cubic root of 3898231 is about 157.3822888010.

The spelling of 3898231 in words is "three million, eight hundred ninety-eight thousand, two hundred thirty-one".