85305207 has 16 divisors (see below), whose sum is σ = 122830848. Its totient is φ = 52349280.

The previous prime is 85305203. The next prime is 85305251. The reversal of 85305207 is 70250358.

It is a happy number.

It is not a de Polignac number, because 85305207 - 2² = 85305203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85305203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12082 + ... + 17792.

It is an arithmetic number, because the mean of its divisors is an integer number (7676928).

Almost surely, 2^85305207 is an apocalyptic number.

85305207 is a deficient number, since it is larger than the sum of its proper divisors (37525641).

85305207 is a wasteful number, since it uses less digits than its factorization.

85305207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 85305207 is about 9236.0817991181. The cubic root of 85305207 is about 440.2085908360.

The spelling of 85305207 in words is "eighty-five million, three hundred five thousand, two hundred seven".