3898143 has 12 divisors (see below), whose sum is σ = 5650008. Its totient is φ = 2589840.

The previous prime is 3898123. The next prime is 3898163. The reversal of 3898143 is 3418983.

It is an interprime number because it is at equal distance from previous prime (3898123) and next prime (3898163).

It is not a de Polignac number, because 3898143 - 2⁹ = 3897631 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 3898098 and 3898107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898123) 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, 3028 + ... + 4118.

It is an arithmetic number, because the mean of its divisors is an integer number (470834).

Almost surely, 2^3898143 is an apocalyptic number.

3898143 is a deficient number, since it is larger than the sum of its proper divisors (1751865).

3898143 is a wasteful number, since it uses less digits than its factorization.

3898143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494 (or 1491 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3898143 is about 1974.3715455810. The cubic root of 3898143 is about 157.3811045248.

The spelling of 3898143 in words is "three million, eight hundred ninety-eight thousand, one hundred forty-three".