85305730 has 16 divisors (see below), whose sum is σ = 153670464. Its totient is φ = 34095600.

The previous prime is 85305713. The next prime is 85305739. The reversal of 85305730 is 3750358.

It is a junction number, because it is equal to n+sod(n) for n = 85305692 and 85305701.

It is not an unprimeable number, because it can be changed into a prime (85305739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14755 + ... + 19705.

It is an arithmetic number, because the mean of its divisors is an integer number (9604404).

Almost surely, 2^85305730 is an apocalyptic number.

85305730 is a deficient number, since it is larger than the sum of its proper divisors (68364734).

85305730 is a wasteful number, since it uses less digits than its factorization.

85305730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 85305730 is about 9236.1101119465. The cubic root of 85305730 is about 440.2094904631.

The spelling of 85305730 in words is "eighty-five million, three hundred five thousand, seven hundred thirty".