2163047 has 4 divisors (see below), whose sum is σ = 2166120. Its totient is φ = 2159976.

The previous prime is 2163043. The next prime is 2163059. The reversal of 2163047 is 7403612.

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 is a cyclic number.

It is not a de Polignac number, because 2163047 - 2² = 2163043 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 6 + 3² + 0 + 4⁸ + 7³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163041) 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, 104 + ... + 2082.

It is an arithmetic number, because the mean of its divisors is an integer number (541530).

2^2163047 is an apocalyptic number.

2163047 is a deficient number, since it is larger than the sum of its proper divisors (3073).

2163047 is a wasteful number, since it uses less digits than its factorization.

2163047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2163047 is about 1470.7300908052. The cubic root of 2163047 is about 129.3268358293.

Adding to 2163047 its reverse (7403612), we get a palindrome (9566659).

The spelling of 2163047 in words is "two million, one hundred sixty-three thousand, forty-seven".