2199973 has 4 divisors (see below), whose sum is σ = 2295648. Its totient is φ = 2104300.

The previous prime is 2199971. The next prime is 2199979. The reversal of 2199973 is 3799912.

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 not a de Polignac number, because 2199973 - 2¹ = 2199971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199971) 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, 47803 + ... + 47848.

It is an arithmetic number, because the mean of its divisors is an integer number (573912).

2^2199973 is an apocalyptic number.

2199973 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2199973 is a deficient number, since it is larger than the sum of its proper divisors (95675).

2199973 is an equidigital number, since it uses as much as digits as its factorization.

2199973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95674.

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

The square root of 2199973 is about 1483.2305956931. The cubic root of 2199973 is about 130.0586126228.

The spelling of 2199973 in words is "two million, one hundred ninety-nine thousand, nine hundred seventy-three".