85563647 has 8 divisors (see below), whose sum is σ = 94636416. Its totient is φ = 76846752.

The previous prime is 85563617. The next prime is 85563649. The reversal of 85563647 is 74636558.

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

It is a cyclic number.

It is not a de Polignac number, because 85563647 - 2¹⁰ = 85562623 is a prime.

It is a super-2 number, since 2×85563647² = 14642275375881218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85563598 and 85563607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85563649) 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, 88463 + ... + 89424.

It is an arithmetic number, because the mean of its divisors is an integer number (11829552).

Almost surely, 2^85563647 is an apocalyptic number.

85563647 is a deficient number, since it is larger than the sum of its proper divisors (9072769).

85563647 is a wasteful number, since it uses less digits than its factorization.

85563647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177937.

The product of its digits is 604800, while the sum is 44.

The square root of 85563647 is about 9250.0619997922. The cubic root of 85563647 is about 440.6526935095.

It can be divided in two parts, 8 and 5563647, that added together give a palindrome (5563655).

The spelling of 85563647 in words is "eighty-five million, five hundred sixty-three thousand, six hundred forty-seven".