2162789 has 8 divisors (see below), whose sum is σ = 2304000. Its totient is φ = 2024352.

The previous prime is 2162747. The next prime is 2162803. The reversal of 2162789 is 9872612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2162789 - 2¹² = 2158693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052 + ... + 2330.

It is an arithmetic number, because the mean of its divisors is an integer number (288000).

2^2162789 is an apocalyptic number.

It is an amenable number.

2162789 is a deficient number, since it is larger than the sum of its proper divisors (141211).

2162789 is a wasteful number, since it uses less digits than its factorization.

2162789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387.

The product of its digits is 12096, while the sum is 35.

The square root of 2162789 is about 1470.6423766504. The cubic root of 2162789 is about 129.3216937542.

The spelling of 2162789 in words is "two million, one hundred sixty-two thousand, seven hundred eighty-nine".