219798 has 12 divisors (see below), whose sum is σ = 476268. Its totient is φ = 73260.

The previous prime is 219797. The next prime is 219799. The reversal of 219798 is 897912.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (219797) and next prime (219799).

It is a super-2 number, since 2×219798² = 96622321608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6088 + ... + 6123.

It is an arithmetic number, because the mean of its divisors is an integer number (39689).

2²¹⁹⁷⁹⁸ is an apocalyptic number.

219798 is an abundant number, since it is smaller than the sum of its proper divisors (256470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

219798 is a wasteful number, since it uses less digits than its factorization.

219798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219 (or 12216 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 219798 is about 468.8261938075. The cubic root of 219798 is about 60.3496254107.

The spelling of 219798 in words is "two hundred nineteen thousand, seven hundred ninety-eight".