2891898 has 24 divisors (see below), whose sum is σ = 6297408. Its totient is φ = 959112.

The previous prime is 2891893. The next prime is 2891899. The reversal of 2891898 is 8981982.

It is not an unprimeable number, because it can be changed into a prime (2891891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6015 + ... + 6477.

It is an arithmetic number, because the mean of its divisors is an integer number (262392).

2^2891898 is an apocalyptic number.

2891898 is an abundant number, since it is smaller than the sum of its proper divisors (3405510).

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

2891898 is a wasteful number, since it uses less digits than its factorization.

2891898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 815 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 2891898 is about 1700.5581436693. The cubic root of 2891898 is about 142.4713885309.

It can be divided in two parts, 289 and 1898, that added together give a 7-th power (2187 = 3⁷).

The spelling of 2891898 in words is "two million, eight hundred ninety-one thousand, eight hundred ninety-eight".