85947 has 4 divisors (see below), whose sum is σ = 114600. Its totient is φ = 57296.

The previous prime is 85933. The next prime is 85991. The reversal of 85947 is 74958.

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 85947 - 2⁴ = 85931 is a prime.

It is a D-number.

85947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (85147) 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, 14322 + ... + 14327.

It is an arithmetic number, because the mean of its divisors is an integer number (28650).

2⁸⁵⁹⁴⁷ is an apocalyptic number.

85947 is a deficient number, since it is larger than the sum of its proper divisors (28653).

85947 is a wasteful number, since it uses less digits than its factorization.

85947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28652.

The product of its digits is 10080, while the sum is 33.

The square root of 85947 is about 293.1671877956. The cubic root of 85947 is about 44.1309802315.

The spelling of 85947 in words is "eighty-five thousand, nine hundred forty-seven".