2731898 has 16 divisors (see below), whose sum is σ = 4445280. Its totient is φ = 1251696.

The previous prime is 2731889. The next prime is 2731901. The reversal of 2731898 is 8981372.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4361 + ... + 4947.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

2^2731898 is an apocalyptic number.

2731898 is a deficient number, since it is larger than the sum of its proper divisors (1713382).

2731898 is a wasteful number, since it uses less digits than its factorization.

2731898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its digits is 24192, while the sum is 38.

The square root of 2731898 is about 1652.8454253196. The cubic root of 2731898 is about 139.7938803559.

The spelling of 2731898 in words is "two million, seven hundred thirty-one thousand, eight hundred ninety-eight".