2268987 has 16 divisors (see below), whose sum is σ = 3494400. Its totient is φ = 1282752.

The previous prime is 2268979. The next prime is 2268991. The reversal of 2268987 is 7898622.

It is a happy number.

It is not a de Polignac number, because 2268987 - 2³ = 2268979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2268977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1639 + ... + 2687.

It is an arithmetic number, because the mean of its divisors is an integer number (218400).

2^2268987 is an apocalyptic number.

2268987 is a deficient number, since it is larger than the sum of its proper divisors (1225413).

2268987 is a wasteful number, since it uses less digits than its factorization.

2268987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its digits is 96768, while the sum is 42.

The square root of 2268987 is about 1506.3157039612. The cubic root of 2268987 is about 131.4046304510.

The spelling of 2268987 in words is "two million, two hundred sixty-eight thousand, nine hundred eighty-seven".