2731994 has 8 divisors (see below), whose sum is σ = 4198068. Its totient is φ = 1332640.

The previous prime is 2731987. The next prime is 2731997. The reversal of 2731994 is 4991372.

It can be written as a sum of positive squares in 2 ways, for example, as 2356225 + 375769 = 1535^2 + 613^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2731997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16577 + ... + 16740.

2^2731994 is an apocalyptic number.

2731994 is a deficient number, since it is larger than the sum of its proper divisors (1466074).

2731994 is a wasteful number, since it uses less digits than its factorization.

2731994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33360.

The product of its digits is 13608, while the sum is 35.

The square root of 2731994 is about 1652.8744658927. The cubic root of 2731994 is about 139.7955178079.

The spelling of 2731994 in words is "two million, seven hundred thirty-one thousand, nine hundred ninety-four".