2197743 has 8 divisors (see below), whose sum is σ = 3102768. Its totient is φ = 1378944.

The previous prime is 2197739. The next prime is 2197747. The reversal of 2197743 is 3477912.

2197743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2197739) and next prime (2197747).

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

It is not a de Polignac number, because 2197743 - 2² = 2197739 is a prime.

2197743 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21496 + ... + 21597.

It is an arithmetic number, because the mean of its divisors is an integer number (387846).

2^2197743 is an apocalyptic number.

2197743 is a deficient number, since it is larger than the sum of its proper divisors (905025).

2197743 is a wasteful number, since it uses less digits than its factorization.

2197743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43113.

The product of its digits is 10584, while the sum is 33.

The square root of 2197743 is about 1482.4786676374. The cubic root of 2197743 is about 130.0146531806.

The spelling of 2197743 in words is "two million, one hundred ninety-seven thousand, seven hundred forty-three".