2729889 has 8 divisors (see below), whose sum is σ = 4044320. Its totient is φ = 1819908.

The previous prime is 2729887. The next prime is 2729917. The reversal of 2729889 is 9889272.

2729889 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 2729889 - 2¹ = 2729887 is a prime.

It is a Duffinian number.

2729889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2729887) 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 7 ways as a sum of consecutive naturals, for example, 50527 + ... + 50580.

It is an arithmetic number, because the mean of its divisors is an integer number (505540).

2^2729889 is an apocalyptic number.

It is an amenable number.

2729889 is a deficient number, since it is larger than the sum of its proper divisors (1314431).

2729889 is a wasteful number, since it uses less digits than its factorization.

2729889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101116 (or 101110 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 2729889 is about 1652.2375737163. The cubic root of 2729889 is about 139.7596044572.

The spelling of 2729889 in words is "two million, seven hundred twenty-nine thousand, eight hundred eighty-nine".