2164802323 has 4 divisors (see below), whose sum is σ = 2234634688. Its totient is φ = 2094969960.

The previous prime is 2164802309. The next prime is 2164802329. The reversal of 2164802323 is 3232084612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2164802323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 69832333 = 2164802323 / (2 + 1 + 6 + 4 + 8 + 0 + 2 + 3 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164802329) 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, 34916136 + ... + 34916197.

It is an arithmetic number, because the mean of its divisors is an integer number (558658672).

Almost surely, 2^2164802323 is an apocalyptic number.

2164802323 is a deficient number, since it is larger than the sum of its proper divisors (69832365).

2164802323 is an equidigital number, since it uses as much as digits as its factorization.

2164802323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69832364.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2164802323 is about 46527.4362392771. The cubic root of 2164802323 is about 1293.6180948610.

Adding to 2164802323 its reverse (3232084612), we get a palindrome (5396886935).

The spelling of 2164802323 in words is "two billion, one hundred sixty-four million, eight hundred two thousand, three hundred twenty-three".