2989867 has 4 divisors (see below), whose sum is σ = 3016440. Its totient is φ = 2963296.

The previous prime is 2989849. The next prime is 2989879. The reversal of 2989867 is 7689892.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2989867 - 2¹⁹ = 2465579 is a prime.

It is a Duffinian number.

2989867 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2989867.

It is not an unprimeable number, because it can be changed into a prime (2989367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13117 + ... + 13342.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

2^2989867 is an apocalyptic number.

2989867 is a deficient number, since it is larger than the sum of its proper divisors (26573).

2989867 is a wasteful number, since it uses less digits than its factorization.

2989867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26572.

The product of its digits is 435456, while the sum is 49.

The square root of 2989867 is about 1729.1231882084. The cubic root of 2989867 is about 144.0623925870.

It can be divided in two parts, 298986 and 7, that multiplied together give a palindrome (2092902).

The spelling of 2989867 in words is "two million, nine hundred eighty-nine thousand, eight hundred sixty-seven".