8143898 has 12 divisors (see below), whose sum is σ = 14210442. Its totient is φ = 3490200.

The previous prime is 8143859. The next prime is 8143907. The reversal of 8143898 is 8983418.

It can be written as a sum of positive squares in only one way, i.e., 6744409 + 1399489 = 2597^2 + 1183^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41453 + ... + 41648.

Almost surely, 2^8143898 is an apocalyptic number.

8143898 is a deficient number, since it is larger than the sum of its proper divisors (6066544).

8143898 is a wasteful number, since it uses less digits than its factorization.

8143898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83117 (or 83110 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 8143898 is about 2853.7515659216. The cubic root of 8143898 is about 201.1920311931.

The spelling of 8143898 in words is "eight million, one hundred forty-three thousand, eight hundred ninety-eight".