398535 has 12 divisors (see below), whose sum is σ = 641592. Its totient is φ = 211248.

The previous prime is 398509. The next prime is 398539. The reversal of 398535 is 535893.

It is not a de Polignac number, because 398535 - 2⁶ = 398471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398496 and 398505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2364 + ... + 2526.

It is an arithmetic number, because the mean of its divisors is an integer number (53466).

2³⁹⁸⁵³⁵ is an apocalyptic number.

398535 is a deficient number, since it is larger than the sum of its proper divisors (243057).

398535 is an equidigital number, since it uses as much as digits as its factorization.

398535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 171 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 398535 is about 631.2962854318. The cubic root of 398535 is about 73.5905681636.

The spelling of 398535 in words is "three hundred ninety-eight thousand, five hundred thirty-five".