398541 has 16 divisors (see below), whose sum is σ = 624960. Its totient is φ = 222720.

The previous prime is 398539. The next prime is 398543. The reversal of 398541 is 145893.

It is an interprime number because it is at equal distance from previous prime (398539) and next prime (398543).

It is not a de Polignac number, because 398541 - 2¹ = 398539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398499 and 398508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (39060).

2³⁹⁸⁵⁴¹ is an apocalyptic number.

It is an amenable number.

398541 is a deficient number, since it is larger than the sum of its proper divisors (226419).

398541 is a wasteful number, since it uses less digits than its factorization.

398541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its digits is 4320, while the sum is 30.

The square root of 398541 is about 631.3010375407. The cubic root of 398541 is about 73.5909374672.

It can be divided in two parts, 398 and 541, that added together give a palindrome (939).

The spelling of 398541 in words is "three hundred ninety-eight thousand, five hundred forty-one".