2851998 has 8 divisors (see below), whose sum is σ = 5704008. Its totient is φ = 950664.

The previous prime is 2851991. The next prime is 2852027. The reversal of 2851998 is 8991582.

It is a happy number.

2851998 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.

2851998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851991) 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, 237661 + ... + 237672.

It is an arithmetic number, because the mean of its divisors is an integer number (713001).

2^2851998 is an apocalyptic number.

2851998 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.

2851998 is a wasteful number, since it uses less digits than its factorization.

2851998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475338.

The product of its digits is 51840, while the sum is 42.

The square root of 2851998 is about 1688.7859544655. The cubic root of 2851998 is about 141.8131179084.

The spelling of 2851998 in words is "two million, eight hundred fifty-one thousand, nine hundred ninety-eight".