398282893 has 4 divisors (see below), whose sum is σ = 398342428. Its totient is φ = 398223360.

The previous prime is 398282879. The next prime is 398282903.

398282893 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 346629924 + 51652969 = 18618^2 + 7187^2 .

It is a cyclic number.

It is not a de Polignac number, because 398282893 - 2⁵ = 398282861 is a prime.

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 398282893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398282803) 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, 18246 + ... + 33607.

It is an arithmetic number, because the mean of its divisors is an integer number (99585607).

Almost surely, 2^398282893 is an apocalyptic number.

It is an amenable number.

398282893 is a deficient number, since it is larger than the sum of its proper divisors (59535).

398282893 is an equidigital number, since it uses as much as digits as its factorization.

398282893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59534.

The product of its digits is 1492992, while the sum is 52.

The square root of 398282893 is about 19957.0261562188. The cubic root of 398282893 is about 735.7504747676.

The spelling of 398282893 in words is "three hundred ninety-eight million, two hundred eighty-two thousand, eight hundred ninety-three".