2897305 has 8 divisors (see below), whose sum is σ = 3501000. Its totient is φ = 2301696.

The previous prime is 2897299. The next prime is 2897311. The reversal of 2897305 is 5037982.

2897305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2897299) and next prime (2897311).

It can be written as a sum of positive squares in 4 ways, for example, as 138384 + 2758921 = 372^2 + 1661^2 .

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 2897305 - 2⁵ = 2897273 is a prime.

It is an unprimeable number.

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, 1200 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (437625).

2^2897305 is an apocalyptic number.

It is an amenable number.

2897305 is a deficient number, since it is larger than the sum of its proper divisors (603695).

2897305 is a wasteful number, since it uses less digits than its factorization.

2897305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2897305 is about 1702.1471734254. The cubic root of 2897305 is about 142.5601264683.

The spelling of 2897305 in words is "two million, eight hundred ninety-seven thousand, three hundred five".