84093805 has 4 divisors (see below), whose sum is σ = 100912572. Its totient is φ = 67275040.

The previous prime is 84093803. The next prime is 84093811. The reversal of 84093805 is 50839048.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40678884 + 43414921 = 6378^2 + 6589^2 .

It is not a de Polignac number, because 84093805 - 2¹ = 84093803 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 (84093803) 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 3 ways as a sum of consecutive naturals, for example, 8409376 + ... + 8409385.

It is an arithmetic number, because the mean of its divisors is an integer number (25228143).

Almost surely, 2^84093805 is an apocalyptic number.

It is an amenable number.

84093805 is a deficient number, since it is larger than the sum of its proper divisors (16818767).

84093805 is a wasteful number, since it uses less digits than its factorization.

84093805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16818766.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 84093805 is about 9170.2674443006. The cubic root of 84093805 is about 438.1148774661.

The spelling of 84093805 in words is "eighty-four million, ninety-three thousand, eight hundred five".