2163802 has 4 divisors (see below), whose sum is σ = 3245706. Its totient is φ = 1081900.

The previous prime is 2163787. The next prime is 2163809. The reversal of 2163802 is 2083612.

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

It can be written as a sum of positive squares in only one way, i.e., 1792921 + 370881 = 1339^2 + 609^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2163809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540949 + ... + 540952.

2^2163802 is an apocalyptic number.

2163802 is a deficient number, since it is larger than the sum of its proper divisors (1081904).

2163802 is a wasteful number, since it uses less digits than its factorization.

2163802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081903.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2163802 is about 1470.9867436520. The cubic root of 2163802 is about 129.3418810260.

The spelling of 2163802 in words is "two million, one hundred sixty-three thousand, eight hundred two".