2199793 has 4 divisors (see below), whose sum is σ = 2230848. Its totient is φ = 2168740.

The previous prime is 2199781. The next prime is 2199803. The reversal of 2199793 is 3979912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2199793 is a prime.

It is a Duffinian number.

2199793 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2199893) 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, 15421 + ... + 15562.

It is an arithmetic number, because the mean of its divisors is an integer number (557712).

2^2199793 is an apocalyptic number.

It is an amenable number.

2199793 is a deficient number, since it is larger than the sum of its proper divisors (31055).

2199793 is an equidigital number, since it uses as much as digits as its factorization.

2199793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31054.

The product of its digits is 30618, while the sum is 40.

The square root of 2199793 is about 1483.1699160919. The cubic root of 2199793 is about 130.0550654295.

Subtracting from 2199793 its sum of digits (40), we obtain a triangular number (2199753 = T₂₀₉₇).

It can be divided in two parts, 2199 and 793, that added together give a palindrome (2992).

The spelling of 2199793 in words is "two million, one hundred ninety-nine thousand, seven hundred ninety-three".