84385305 has 12 divisors (see below), whose sum is σ = 146267940. Its totient is φ = 45005472.

The previous prime is 84385303. The next prime is 84385309. The reversal of 84385305 is 50358348.

It can be written as a sum of positive squares in 2 ways, for example, as 56791296 + 27594009 = 7536^2 + 5253^2 .

It is not a de Polignac number, because 84385305 - 2¹ = 84385303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84385305.

It is not an unprimeable number, because it can be changed into a prime (84385303) 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 11 ways as a sum of consecutive naturals, for example, 937570 + ... + 937659.

It is an arithmetic number, because the mean of its divisors is an integer number (12188995).

Almost surely, 2^84385305 is an apocalyptic number.

It is an amenable number.

84385305 is a deficient number, since it is larger than the sum of its proper divisors (61882635).

84385305 is a wasteful number, since it uses less digits than its factorization.

84385305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875240 (or 1875237 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 84385305 is about 9186.1474514619. The cubic root of 84385305 is about 438.6205160067.

The spelling of 84385305 in words is "eighty-four million, three hundred eighty-five thousand, three hundred five".