85009307 has 2 divisors, whose sum is σ = 85009308. Its totient is φ = 85009306.

The previous prime is 85009283. The next prime is 85009319. The reversal of 85009307 is 70390058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85009307 - 2¹² = 85005211 is a prime.

It is not a weakly prime, because it can be changed into another prime (85009007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42504653 + 42504654.

It is an arithmetic number, because the mean of its divisors is an integer number (42504654).

Almost surely, 2^85009307 is an apocalyptic number.

85009307 is a deficient number, since it is larger than the sum of its proper divisors (1).

85009307 is an equidigital number, since it uses as much as digits as its factorization.

85009307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 85009307 is about 9220.0491864198. The cubic root of 85009307 is about 439.6990141963.

The spelling of 85009307 in words is "eighty-five million, nine thousand, three hundred seven".