409798 has 8 divisors (see below), whose sum is σ = 624960. Its totient is φ = 201480.

The previous prime is 409781. The next prime is 409813. The reversal of 409798 is 897904.

It is a happy number.

409798 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

409798 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1558 + ... + 1801.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2⁴⁰⁹⁷⁹⁸ is an apocalyptic number.

409798 is a deficient number, since it is larger than the sum of its proper divisors (215162).

409798 is a wasteful number, since it uses less digits than its factorization.

409798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 409798 is about 640.1546688106. The cubic root of 409798 is about 74.2773860063.

The spelling of 409798 in words is "four hundred nine thousand, seven hundred ninety-eight".