2897005 has 8 divisors (see below), whose sum is σ = 3524472. Its totient is φ = 2285568.

The previous prime is 2897003. The next prime is 2897023. The reversal of 2897005 is 5007982.

2897005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1212201 + 1684804 = 1101^2 + 1298^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2897005 - 2¹ = 2897003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897003) 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, 3604 + ... + 4333.

It is an arithmetic number, because the mean of its divisors is an integer number (440559).

2^2897005 is an apocalyptic number.

It is an amenable number.

2897005 is a deficient number, since it is larger than the sum of its proper divisors (627467).

2897005 is an equidigital number, since it uses as much as digits as its factorization.

2897005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8015.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2897005 is about 1702.0590471544. The cubic root of 2897005 is about 142.5552058594. Note that the first 3 decimals are identical.

The spelling of 2897005 in words is "two million, eight hundred ninety-seven thousand, five".