85347847 has 8 divisors (see below), whose sum is σ = 92096144. Its totient is φ = 78625728.

The previous prime is 85347833. The next prime is 85347853. The reversal of 85347847 is 74874358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85347847 - 2⁷ = 85347719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85347797 and 85347806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85347827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523 + ... + 13075.

It is an arithmetic number, because the mean of its divisors is an integer number (11512018).

Almost surely, 2^85347847 is an apocalyptic number.

85347847 is a deficient number, since it is larger than the sum of its proper divisors (6748297).

85347847 is a wasteful number, since it uses less digits than its factorization.

85347847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13089.

The product of its digits is 752640, while the sum is 46.

The square root of 85347847 is about 9238.3898488860. The cubic root of 85347847 is about 440.2819250374.

The spelling of 85347847 in words is "eighty-five million, three hundred forty-seven thousand, eight hundred forty-seven".