2730387 has 32 divisors (see below), whose sum is σ = 4368384. Its totient is φ = 1497600.

The previous prime is 2730383. The next prime is 2730397. The reversal of 2730387 is 7830372.

2730387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2730387 - 2² = 2730383 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2730383) 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 31 ways as a sum of consecutive naturals, for example, 17313 + ... + 17469.

It is an arithmetic number, because the mean of its divisors is an integer number (136512).

2^2730387 is an apocalyptic number.

2730387 is a deficient number, since it is larger than the sum of its proper divisors (1637997).

2730387 is a wasteful number, since it uses less digits than its factorization.

2730387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2730387 is about 1652.3882715633. The cubic root of 2730387 is about 139.7681024891.

The spelling of 2730387 in words is "two million, seven hundred thirty thousand, three hundred eighty-seven".