223898 has 4 divisors (see below), whose sum is σ = 335850. Its totient is φ = 111948.

The previous prime is 223849. The next prime is 223903. The reversal of 223898 is 898322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 898322 = 2 ⋅449161.

It can be written as a sum of positive squares in only one way, i.e., 223729 + 169 = 473^2 + 13^2 .

It is a nialpdrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55973 + ... + 55976.

2²²³⁸⁹⁸ is an apocalyptic number.

223898 is a deficient number, since it is larger than the sum of its proper divisors (111952).

223898 is a wasteful number, since it uses less digits than its factorization.

223898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111951.

The product of its digits is 6912, while the sum is 32.

The square root of 223898 is about 473.1786132107. The cubic root of 223898 is about 60.7225598214.

The spelling of 223898 in words is "two hundred twenty-three thousand, eight hundred ninety-eight".