84397332905 has 8 divisors (see below), whose sum is σ = 101336070600. Its totient is φ = 67478352256.

The previous prime is 84397332893. The next prime is 84397332953. The reversal of 84397332905 is 50923379348.

It can be written as a sum of positive squares in 4 ways, for example, as 6881863849 + 77515469056 = 82957^2 + 278416^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84397332905 - 2⁶ = 84397332841 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4929860 + ... + 4946949.

It is an arithmetic number, because the mean of its divisors is an integer number (12667008825).

Almost surely, 2^84397332905 is an apocalyptic number.

It is an amenable number.

84397332905 is a deficient number, since it is larger than the sum of its proper divisors (16938737695).

84397332905 is a wasteful number, since it uses less digits than its factorization.

84397332905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878523.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 84397332905 in words is "eighty-four billion, three hundred ninety-seven million, three hundred thirty-two thousand, nine hundred five".