2163715 has 4 divisors (see below), whose sum is σ = 2596464. Its totient is φ = 1730968.

The previous prime is 2163703. The next prime is 2163737. The reversal of 2163715 is 5173612.

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 2163715 - 2¹⁷ = 2032643 is a prime.

It is a Duffinian number.

2163715 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2163715.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216367 + ... + 216376.

It is an arithmetic number, because the mean of its divisors is an integer number (649116).

2^2163715 is an apocalyptic number.

2163715 is a deficient number, since it is larger than the sum of its proper divisors (432749).

2163715 is an equidigital number, since it uses as much as digits as its factorization.

2163715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432748.

The product of its digits is 1260, while the sum is 25.

The square root of 2163715 is about 1470.9571713684. The cubic root of 2163715 is about 129.3401475195.

It can be divided in two parts, 21 and 63715, that added together give a palindrome (63736).

The spelling of 2163715 in words is "two million, one hundred sixty-three thousand, seven hundred fifteen".