2803998 has 8 divisors (see below), whose sum is σ = 5608008. Its totient is φ = 934664.

The previous prime is 2803991. The next prime is 2804023. The reversal of 2803998 is 8993082.

2803998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2803998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2803991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233661 + ... + 233672.

It is an arithmetic number, because the mean of its divisors is an integer number (701001).

2^2803998 is an apocalyptic number.

2803998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2803998 is a wasteful number, since it uses less digits than its factorization.

2803998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467338.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2803998 is about 1674.5142579268. The cubic root of 2803998 is about 141.0130263102.

It can be divided in two parts, 280 and 3998, that added together give a triangular number (4278 = T₉₂).

The spelling of 2803998 in words is "two million, eight hundred three thousand, nine hundred ninety-eight".