2917287 has 6 divisors (see below), whose sum is σ = 4213872. Its totient is φ = 1944852.

The previous prime is 2917261. The next prime is 2917289. The reversal of 2917287 is 7827192.

2917287 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 2917287 - 2⁶ = 2917223 is a prime.

2917287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2917289) 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 5 ways as a sum of consecutive naturals, for example, 162063 + ... + 162080.

It is an arithmetic number, because the mean of its divisors is an integer number (702312).

2^2917287 is an apocalyptic number.

2917287 is a deficient number, since it is larger than the sum of its proper divisors (1296585).

2917287 is a wasteful number, since it uses less digits than its factorization.

2917287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324149 (or 324146 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2917287 is about 1708.0067330078. The cubic root of 2917287 is about 142.8871099515.

The spelling of 2917287 in words is "two million, nine hundred seventeen thousand, two hundred eighty-seven".