2731984 has 10 divisors (see below), whose sum is σ = 5293250. Its totient is φ = 1365984.

The previous prime is 2731979. The next prime is 2731987. The reversal of 2731984 is 4891372.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 107584 = 1620^2 + 328^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85359 + ... + 85390.

It is an arithmetic number, because the mean of its divisors is an integer number (529325).

2^2731984 is an apocalyptic number.

It is an amenable number.

2731984 is a deficient number, since it is larger than the sum of its proper divisors (2561266).

2731984 is a wasteful number, since it uses less digits than its factorization.

2731984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170757 (or 170751 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 2731984 is about 1652.8714408568. The cubic root of 2731984 is about 139.7953472418.

The spelling of 2731984 in words is "two million, seven hundred thirty-one thousand, nine hundred eighty-four".