85245647 has 8 divisors (see below), whose sum is σ = 90390000. Its totient is φ = 80167104.

The previous prime is 85245623. The next prime is 85245649. The reversal of 85245647 is 74654258.

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 85245647 - 2¹² = 85241551 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 (85245649) 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, 13772 + ... + 18977.

It is an arithmetic number, because the mean of its divisors is an integer number (11298750).

Almost surely, 2^85245647 is an apocalyptic number.

85245647 is a deficient number, since it is larger than the sum of its proper divisors (5144353).

85245647 is a wasteful number, since it uses less digits than its factorization.

85245647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32905.

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

The square root of 85245647 is about 9232.8569251343. The cubic root of 85245647 is about 440.1061159346.

The spelling of 85245647 in words is "eighty-five million, two hundred forty-five thousand, six hundred forty-seven".