2847993898 has 8 divisors (see below), whose sum is σ = 4274746308. Its totient is φ = 1423078464.

The previous prime is 2847993881. The next prime is 2847993917. The reversal of 2847993898 is 8983997482.

It can be written as a sum of positive squares in 2 ways, for example, as 2617652569 + 230341329 = 51163^2 + 15177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2847993898² = 16222138486090468808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455361 + ... + 461572.

Almost surely, 2^2847993898 is an apocalyptic number.

2847993898 is a deficient number, since it is larger than the sum of its proper divisors (1426752410).

2847993898 is a wasteful number, since it uses less digits than its factorization.

2847993898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918488.

The product of its digits is 62705664, while the sum is 67.

The square root of 2847993898 is about 53366.5990859451. The cubic root of 2847993898 is about 1417.4671999643.

The spelling of 2847993898 in words is "two billion, eight hundred forty-seven million, nine hundred ninety-three thousand, eight hundred ninety-eight".