2916689 has 4 divisors (see below), whose sum is σ = 2920500. Its totient is φ = 2912880.

The previous prime is 2916677. The next prime is 2916691. The reversal of 2916689 is 9866192.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1067089 + 1849600 = 1033^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 2916689 - 2¹⁶ = 2851153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2916629) 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, 314 + ... + 2435.

It is an arithmetic number, because the mean of its divisors is an integer number (730125).

2^2916689 is an apocalyptic number.

It is an amenable number.

2916689 is a deficient number, since it is larger than the sum of its proper divisors (3811).

2916689 is a wasteful number, since it uses less digits than its factorization.

2916689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810.

The product of its digits is 46656, while the sum is 41.

The square root of 2916689 is about 1707.8316661779. The cubic root of 2916689 is about 142.8773460474.

The spelling of 2916689 in words is "two million, nine hundred sixteen thousand, six hundred eighty-nine".