2729487 has 4 divisors (see below), whose sum is σ = 3639320. Its totient is φ = 1819656.

The previous prime is 2729473. The next prime is 2729491. The reversal of 2729487 is 7849272.

2729487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2729487 - 2⁶ = 2729423 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729417) 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 3 ways as a sum of consecutive naturals, for example, 454912 + ... + 454917.

It is an arithmetic number, because the mean of its divisors is an integer number (909830).

2^2729487 is an apocalyptic number.

2729487 is a deficient number, since it is larger than the sum of its proper divisors (909833).

2729487 is an equidigital number, since it uses as much as digits as its factorization.

2729487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909832.

The product of its digits is 56448, while the sum is 39.

The square root of 2729487 is about 1652.1159160301. The cubic root of 2729487 is about 139.7527438463.

The spelling of 2729487 in words is "two million, seven hundred twenty-nine thousand, four hundred eighty-seven".