85545647 has 8 divisors (see below), whose sum is σ = 96333312. Its totient is φ = 75259800.

The previous prime is 85545641. The next prime is 85545661. The reversal of 85545647 is 74654558.

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

It is not a de Polignac number, because 85545647 - 2¹⁰ = 85544623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85545598 and 85545607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85545641) 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, 125093 + ... + 125774.

It is an arithmetic number, because the mean of its divisors is an integer number (12041664).

Almost surely, 2^85545647 is an apocalyptic number.

85545647 is a deficient number, since it is larger than the sum of its proper divisors (10787665).

85545647 is a wasteful number, since it uses less digits than its factorization.

85545647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250909.

The product of its digits is 672000, while the sum is 44.

The square root of 85545647 is about 9249.0889821647. The cubic root of 85545647 is about 440.6217913486.

The spelling of 85545647 in words is "eighty-five million, five hundred forty-five thousand, six hundred forty-seven".