163898 has 16 divisors (see below), whose sum is σ = 293760. Its totient is φ = 67056.

The previous prime is 163883. The next prime is 163901. The reversal of 163898 is 898361.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68 + ... + 576.

It is an arithmetic number, because the mean of its divisors is an integer number (18360).

2¹⁶³⁸⁹⁸ is an apocalyptic number.

163898 is a deficient number, since it is larger than the sum of its proper divisors (129862).

163898 is a wasteful number, since it uses less digits than its factorization.

163898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its digits is 10368, while the sum is 35.

The square root of 163898 is about 404.8431795152. The cubic root of 163898 is about 54.7256864723.

The spelling of 163898 in words is "one hundred sixty-three thousand, eight hundred ninety-eight".