1820836795 has 4 divisors (see below), whose sum is σ = 2185004160. Its totient is φ = 1456669432.

The previous prime is 1820836789. The next prime is 1820836841. The reversal of 1820836795 is 5976380281.

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 1820836795 - 2¹¹ = 1820834747 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182083675 + ... + 182083684.

It is an arithmetic number, because the mean of its divisors is an integer number (546251040).

Almost surely, 2^1820836795 is an apocalyptic number.

1820836795 is a deficient number, since it is larger than the sum of its proper divisors (364167365).

1820836795 is an equidigital number, since it uses as much as digits as its factorization.

1820836795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364167364.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 1820836795 is about 42671.2642770284. The cubic root of 1820836795 is about 1221.1162396494.

The spelling of 1820836795 in words is "one billion, eight hundred twenty million, eight hundred thirty-six thousand, seven hundred ninety-five".