84447995903 has 4 divisors (see below), whose sum is σ = 85637404368. Its totient is φ = 83258587440.

The previous prime is 84447995857. The next prime is 84447995917. The reversal of 84447995903 is 30959974448.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84447995903 - 2⁸ = 84447995647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84447995003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594704126 + ... + 594704267.

It is an arithmetic number, because the mean of its divisors is an integer number (21409351092).

Almost surely, 2^84447995903 is an apocalyptic number.

84447995903 is a deficient number, since it is larger than the sum of its proper divisors (1189408465).

84447995903 is a wasteful number, since it uses less digits than its factorization.

84447995903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189408464.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 84447995903 in words is "eighty-four billion, four hundred forty-seven million, nine hundred ninety-five thousand, nine hundred three".