398141 has 4 divisors (see below), whose sum is σ = 411900. Its totient is φ = 384384.

The previous prime is 398129. The next prime is 398143. The reversal of 398141 is 141893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141893 = 47 ⋅3019.

It can be written as a sum of positive squares in 2 ways, for example, as 177241 + 220900 = 421^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 398141 - 2⁶ = 398077 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 398141.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398141.

It is not an unprimeable number, because it can be changed into a prime (398143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6836 + ... + 6893.

It is an arithmetic number, because the mean of its divisors is an integer number (102975).

2³⁹⁸¹⁴¹ is an apocalyptic number.

It is an amenable number.

398141 is a deficient number, since it is larger than the sum of its proper divisors (13759).

398141 is a wasteful number, since it uses less digits than its factorization.

398141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758.

The product of its digits is 864, while the sum is 26.

The square root of 398141 is about 630.9841519404. The cubic root of 398141 is about 73.5663091115.

The spelling of 398141 in words is "three hundred ninety-eight thousand, one hundred forty-one".