284196838 has 4 divisors (see below), whose sum is σ = 426295260. Its totient is φ = 142098418.

The previous prime is 284196833. The next prime is 284196853. The reversal of 284196838 is 838691482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 838691482 = 2 ⋅419345741.

It is a junction number, because it is equal to n+sod(n) for n = 284196791 and 284196800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284196833) 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 as a sum of consecutive naturals, namely, 71049208 + ... + 71049211.

It is an arithmetic number, because the mean of its divisors is an integer number (106573815).

Almost surely, 2^284196838 is an apocalyptic number.

284196838 is a deficient number, since it is larger than the sum of its proper divisors (142098422).

284196838 is a wasteful number, since it uses less digits than its factorization.

284196838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142098421.

The product of its digits is 663552, while the sum is 49.

The square root of 284196838 is about 16858.1386279743. The cubic root of 284196838 is about 657.4656696307.

The spelling of 284196838 in words is "two hundred eighty-four million, one hundred ninety-six thousand, eight hundred thirty-eight".