84447443 has 2 divisors, whose sum is σ = 84447444. Its totient is φ = 84447442.

The previous prime is 84447427. The next prime is 84447479. The reversal of 84447443 is 34474448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84447443 - 2⁴ = 84447427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84447397 and 84447406.

It is not a weakly prime, because it can be changed into another prime (84441443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42223721 + 42223722.

It is an arithmetic number, because the mean of its divisors is an integer number (42223722).

Almost surely, 2^84447443 is an apocalyptic number.

84447443 is a deficient number, since it is larger than the sum of its proper divisors (1).

84447443 is an equidigital number, since it uses as much as digits as its factorization.

84447443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 38.

The square root of 84447443 is about 9189.5289868415. The cubic root of 84447443 is about 438.7281505233.

The spelling of 84447443 in words is "eighty-four million, four hundred forty-seven thousand, four hundred forty-three".