2443973 has 6 divisors (see below), whose sum is σ = 2843046. Its totient is φ = 2094792.

The previous prime is 2443963. The next prime is 2443993. The reversal of 2443973 is 3793442.

It can be written as a sum of positive squares in only one way, i.e., 1399489 + 1044484 = 1183^2 + 1022^2 .

It is not a de Polignac number, because 2443973 - 2¹⁰ = 2442949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24890 + ... + 24987.

It is an arithmetic number, because the mean of its divisors is an integer number (473841).

2^2443973 is an apocalyptic number.

It is an amenable number.

2443973 is a deficient number, since it is larger than the sum of its proper divisors (399073).

2443973 is an equidigital number, since it uses as much as digits as its factorization.

2443973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49891 (or 49884 counting only the distinct ones).

The product of its digits is 18144, while the sum is 32.

The square root of 2443973 is about 1563.3211442311. The cubic root of 2443973 is about 134.6993400390.

The spelling of 2443973 in words is "two million, four hundred forty-three thousand, nine hundred seventy-three".