2196743 has 4 divisors (see below), whose sum is σ = 2199768. Its totient is φ = 2193720.

The previous prime is 2196737. The next prime is 2196749. The reversal of 2196743 is 3476912.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2196737) and next prime (2196749).

It is a cyclic number.

It is not a de Polignac number, because 2196743 - 2⁸ = 2196487 is a prime.

It is a Duffinian number.

Its product of digits (9072) is a multiple of the sum of its prime divisors (3024).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196749) 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, 308 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (549942).

2^2196743 is an apocalyptic number.

2196743 is a deficient number, since it is larger than the sum of its proper divisors (3025).

2196743 is a wasteful number, since it uses less digits than its factorization.

2196743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024.

The product of its digits is 9072, while the sum is 32.

The square root of 2196743 is about 1482.1413562815. The cubic root of 2196743 is about 129.9949307688.

The spelling of 2196743 in words is "two million, one hundred ninety-six thousand, seven hundred forty-three".