398141893 has 4 divisors (see below), whose sum is σ = 398232288. Its totient is φ = 398051500.

The previous prime is 398141839. The next prime is 398141911.

It is a happy number.

398141893 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 398141893 - 2²¹ = 396044741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398141803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38233 + ... + 47518.

It is an arithmetic number, because the mean of its divisors is an integer number (99558072).

Almost surely, 2^398141893 is an apocalyptic number.

It is an amenable number.

398141893 is a deficient number, since it is larger than the sum of its proper divisors (90395).

398141893 is an equidigital number, since it uses as much as digits as its factorization.

398141893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90394.

The product of its digits is 186624, while the sum is 46.

The square root of 398141893 is about 19953.4932530622. The cubic root of 398141893 is about 735.6636411265.

The spelling of 398141893 in words is "three hundred ninety-eight million, one hundred forty-one thousand, eight hundred ninety-three".