353998 has 8 divisors (see below), whose sum is σ = 533808. Its totient is φ = 176064.

The previous prime is 353963. The next prime is 354001. The reversal of 353998 is 899353.

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

It is a super-3 number, since 3×353998³ = 133083336324743976, which contains 333 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

353998 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190 + ... + 862.

It is an arithmetic number, because the mean of its divisors is an integer number (66726).

2³⁵³⁹⁹⁸ is an apocalyptic number.

353998 is a deficient number, since it is larger than the sum of its proper divisors (179810).

353998 is a wasteful number, since it uses less digits than its factorization.

353998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its digits is 29160, while the sum is 37.

The square root of 353998 is about 594.9773104918. The cubic root of 353998 is about 70.7403063296.

The spelling of 353998 in words is "three hundred fifty-three thousand, nine hundred ninety-eight".