398954 has 8 divisors (see below), whose sum is σ = 612480. Its totient is φ = 194796.

The previous prime is 398941. The next prime is 398969. The reversal of 398954 is 459893.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398954.

It is an unprimeable number.

398954 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (76560).

2³⁹⁸⁹⁵⁴ is an apocalyptic number.

398954 is a deficient number, since it is larger than the sum of its proper divisors (213526).

398954 is a wasteful number, since it uses less digits than its factorization.

398954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684.

The product of its digits is 38880, while the sum is 38.

The square root of 398954 is about 631.6280551084. The cubic root of 398954 is about 73.6163489595.

The spelling of 398954 in words is "three hundred ninety-eight thousand, nine hundred fifty-four".