398955 has 8 divisors (see below), whose sum is σ = 638352. Its totient is φ = 212768.

The previous prime is 398941. The next prime is 398969. The reversal of 398955 is 559893.

398955 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (398941) and next prime (398969).

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 398955 - 2¹³ = 390763 is a prime.

398955 is strictly pandigital in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13284 + ... + 13313.

It is an arithmetic number, because the mean of its divisors is an integer number (79794).

2³⁹⁸⁹⁵⁵ is an apocalyptic number.

398955 is a deficient number, since it is larger than the sum of its proper divisors (239397).

398955 is a wasteful number, since it uses less digits than its factorization.

398955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26605.

The product of its digits is 48600, while the sum is 39.

The square root of 398955 is about 631.6288467130. The cubic root of 398955 is about 73.6164104672.

The spelling of 398955 in words is "three hundred ninety-eight thousand, nine hundred fifty-five".