281798 has 8 divisors (see below), whose sum is σ = 461160. Its totient is φ = 128080.

The previous prime is 281797. The next prime is 281803. The reversal of 281798 is 897182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×281798² = 158820225608, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281798.

It is not an unprimeable number, because it can be changed into a prime (281791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6383 + ... + 6426.

It is an arithmetic number, because the mean of its divisors is an integer number (57645).

2²⁸¹⁷⁹⁸ is an apocalyptic number.

281798 is a deficient number, since it is larger than the sum of its proper divisors (179362).

281798 is a wasteful number, since it uses less digits than its factorization.

281798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12822.

The product of its digits is 8064, while the sum is 35.

The square root of 281798 is about 530.8464938191. The cubic root of 281798 is about 65.5610603227.

The spelling of 281798 in words is "two hundred eighty-one thousand, seven hundred ninety-eight".