398983 has 8 divisors (see below), whose sum is σ = 439488. Its totient is φ = 359904.

The previous prime is 398977. The next prime is 398989. The reversal of 398983 is 389893.

It is an interprime number because it is at equal distance from previous prime (398977) and next prime (398989).

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

It is a cyclic number.

It is not a de Polignac number, because 398983 - 2⁹ = 398471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285 + ... + 937.

It is an arithmetic number, because the mean of its divisors is an integer number (54936).

2³⁹⁸⁹⁸³ is an apocalyptic number.

398983 is a deficient number, since it is larger than the sum of its proper divisors (40505).

398983 is a wasteful number, since it uses less digits than its factorization.

398983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713.

The product of its digits is 46656, while the sum is 40.

The square root of 398983 is about 631.6510112396. The cubic root of 398983 is about 73.6181326425.

The spelling of 398983 in words is "three hundred ninety-eight thousand, nine hundred eighty-three".