85546247 has 4 divisors (see below), whose sum is σ = 85588416. Its totient is φ = 85504080.

The previous prime is 85546171. The next prime is 85546271. The reversal of 85546247 is 74264558.

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 85546247 - 2⁸ = 85545991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85546147) 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, 17879 + ... + 22152.

It is an arithmetic number, because the mean of its divisors is an integer number (21397104).

Almost surely, 2^85546247 is an apocalyptic number.

85546247 is a deficient number, since it is larger than the sum of its proper divisors (42169).

85546247 is a wasteful number, since it uses less digits than its factorization.

85546247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42168.

The product of its digits is 268800, while the sum is 41.

The square root of 85546247 is about 9249.1214177348. The cubic root of 85546247 is about 440.6228214905.

The spelling of 85546247 in words is "eighty-five million, five hundred forty-six thousand, two hundred forty-seven".