2897287 has 8 divisors (see below), whose sum is σ = 3055104. Its totient is φ = 2742168.

The previous prime is 2897273. The next prime is 2897299. The reversal of 2897287 is 7827982.

2897287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2897287 - 2¹⁹ = 2372999 is a prime.

It is a d-powerful number, because it can be written as 2² + 8⁴ + 9⁶ + 7² + 2²¹ + 8⁶ + 7⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897227) 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, 1758 + ... + 2980.

It is an arithmetic number, because the mean of its divisors is an integer number (381888).

2^2897287 is an apocalyptic number.

2897287 is a deficient number, since it is larger than the sum of its proper divisors (157817).

2897287 is a wasteful number, since it uses less digits than its factorization.

2897287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349.

The product of its digits is 112896, while the sum is 43.

The square root of 2897287 is about 1702.1418859778. The cubic root of 2897287 is about 142.5598312413.

The spelling of 2897287 in words is "two million, eight hundred ninety-seven thousand, two hundred eighty-seven".