43982347 has 2 divisors, whose sum is σ = 43982348. Its totient is φ = 43982346.

The previous prime is 43982329. The next prime is 43982353. The reversal of 43982347 is 74328934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43982347 - 2⁷ = 43982219 is a prime.

It is not a weakly prime, because it can be changed into another prime (43982047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21991173 + 21991174.

It is an arithmetic number, because the mean of its divisors is an integer number (21991174).

Almost surely, 2^43982347 is an apocalyptic number.

43982347 is a deficient number, since it is larger than the sum of its proper divisors (1).

43982347 is an equidigital number, since it uses as much as digits as its factorization.

43982347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 43982347 is about 6631.9188022774. The cubic root of 43982347 is about 352.9876141572.

The spelling of 43982347 in words is "forty-three million, nine hundred eighty-two thousand, three hundred forty-seven".