43972193 has 2 divisors, whose sum is σ = 43972194. Its totient is φ = 43972192.

The previous prime is 43972177. The next prime is 43972199. The reversal of 43972193 is 39127934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43138624 + 833569 = 6568^2 + 913^2 .

It is a cyclic number.

It is not a de Polignac number, because 43972193 - 2⁴ = 43972177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43972199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21986096 + 21986097.

It is an arithmetic number, because the mean of its divisors is an integer number (21986097).

Almost surely, 2^43972193 is an apocalyptic number.

It is an amenable number.

43972193 is a deficient number, since it is larger than the sum of its proper divisors (1).

43972193 is an equidigital number, since it uses as much as digits as its factorization.

43972193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 38.

The square root of 43972193 is about 6631.1532179554. The cubic root of 43972193 is about 352.9604478633.

The spelling of 43972193 in words is "forty-three million, nine hundred seventy-two thousand, one hundred ninety-three".