84006805 has 8 divisors (see below), whose sum is σ = 100887552. Its totient is φ = 67152528.

The previous prime is 84006803. The next prime is 84006829. The reversal of 84006805 is 50860048.

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 84006805 - 2¹ = 84006803 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 (84006803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212 + ... + 13018.

It is an arithmetic number, because the mean of its divisors is an integer number (12610944).

Almost surely, 2^84006805 is an apocalyptic number.

It is an amenable number.

84006805 is a deficient number, since it is larger than the sum of its proper divisors (16880747).

84006805 is a wasteful number, since it uses less digits than its factorization.

84006805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13235.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 84006805 is about 9165.5226255790. The cubic root of 84006805 is about 437.9637401090.

The spelling of 84006805 in words is "eighty-four million, six thousand, eight hundred five".