2870287 has 16 divisors (see below), whose sum is σ = 3431232. Its totient is φ = 2350080.

The previous prime is 2870279. The next prime is 2870323. The reversal of 2870287 is 7820782.

It is a cyclic number.

It is not a de Polignac number, because 2870287 - 2³ = 2870279 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2870227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20883 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (214452).

2^2870287 is an apocalyptic number.

2870287 is a deficient number, since it is larger than the sum of its proper divisors (560945).

2870287 is a wasteful number, since it uses less digits than its factorization.

2870287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 2870287 is about 1694.1921378639. The cubic root of 2870287 is about 142.1156071045.

The spelling of 2870287 in words is "two million, eight hundred seventy thousand, two hundred eighty-seven".