84447999803 has 2 divisors, whose sum is σ = 84447999804. Its totient is φ = 84447999802.

The previous prime is 84447999799. The next prime is 84447999809. The reversal of 84447999803 is 30899974448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84447999803 - 2² = 84447999799 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84447999803.

It is not a weakly prime, because it can be changed into another prime (84447999809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42223999901 + 42223999902.

It is an arithmetic number, because the mean of its divisors is an integer number (42223999902).

Almost surely, 2^84447999803 is an apocalyptic number.

84447999803 is a deficient number, since it is larger than the sum of its proper divisors (1).

84447999803 is an equidigital number, since it uses as much as digits as its factorization.

84447999803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 84447999803 in words is "eighty-four billion, four hundred forty-seven million, nine hundred ninety-nine thousand, eight hundred three".