393798 has 8 divisors (see below), whose sum is σ = 787608. Its totient is φ = 131264.

The previous prime is 393797. The next prime is 393847. The reversal of 393798 is 897393.

It is a happy number.

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

393798 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393797) 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, 32811 + ... + 32822.

It is an arithmetic number, because the mean of its divisors is an integer number (98451).

2³⁹³⁷⁹⁸ is an apocalyptic number.

393798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

393798 is a wasteful number, since it uses less digits than its factorization.

393798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65638.

The product of its digits is 40824, while the sum is 39.

The square root of 393798 is about 627.5332660505. The cubic root of 393798 is about 73.2978386537.

The spelling of 393798 in words is "three hundred ninety-three thousand, seven hundred ninety-eight".