2788667 has 16 divisors (see below), whose sum is σ = 3354624. Its totient is φ = 2268000.

The previous prime is 2788661. The next prime is 2788693. The reversal of 2788667 is 7668872.

It is a happy number.

2788667 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2788667 - 2⁶ = 2788603 is a prime.

2788667 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (2788661) 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, 15317 + ... + 15497.

It is an arithmetic number, because the mean of its divisors is an integer number (209664).

2^2788667 is an apocalyptic number.

2788667 is a deficient number, since it is larger than the sum of its proper divisors (565957).

2788667 is a wasteful number, since it uses less digits than its factorization.

2788667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 225792, while the sum is 44.

The square root of 2788667 is about 1669.9302380639. The cubic root of 2788667 is about 140.7555578950.

The spelling of 2788667 in words is "two million, seven hundred eighty-eight thousand, six hundred sixty-seven".