2161793 has 8 divisors (see below), whose sum is σ = 2272128. Its totient is φ = 2052864.

The previous prime is 2161787. The next prime is 2161813. The reversal of 2161793 is 3971612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2161793 - 2⁴ = 2161777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2161493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4196 + ... + 4682.

It is an arithmetic number, because the mean of its divisors is an integer number (284016).

2^2161793 is an apocalyptic number.

2161793 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2161793 is a deficient number, since it is larger than the sum of its proper divisors (110335).

2161793 is a wasteful number, since it uses less digits than its factorization.

2161793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703.

The product of its digits is 2268, while the sum is 29.

The square root of 2161793 is about 1470.3037101225. The cubic root of 2161793 is about 129.3018391152.

The spelling of 2161793 in words is "two million, one hundred sixty-one thousand, seven hundred ninety-three".