85307 has 4 divisors (see below), whose sum is σ = 89040. Its totient is φ = 81576.

The previous prime is 85303. The next prime is 85313. The reversal of 85307 is 70358.

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

It is a cyclic number.

It is not a de Polignac number, because 85307 - 2² = 85303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 3709 = 85307 / (8 + 5 + 3 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (22260).

2⁸⁵³⁰⁷ is an apocalyptic number.

85307 is a deficient number, since it is larger than the sum of its proper divisors (3733).

85307 is a wasteful number, since it uses less digits than its factorization.

85307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 85307 is about 292.0736208561. The cubic root of 85307 is about 44.0211675011.

The spelling of 85307 in words is "eighty-five thousand, three hundred seven".