85448517 has 32 divisors (see below), whose sum is σ = 144190464. Its totient is φ = 43718400.

The previous prime is 85448513. The next prime is 85448527. The reversal of 85448517 is 71584458.

It is not a de Polignac number, because 85448517 - 2² = 85448513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85448513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12717 + ... + 18237.

It is an arithmetic number, because the mean of its divisors is an integer number (4505952).

Almost surely, 2^85448517 is an apocalyptic number.

It is an amenable number.

85448517 is a deficient number, since it is larger than the sum of its proper divisors (58741947).

85448517 is a wasteful number, since it uses less digits than its factorization.

85448517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609.

The product of its digits is 179200, while the sum is 42.

The square root of 85448517 is about 9243.8367034473. The cubic root of 85448517 is about 440.4549650049.

The spelling of 85448517 in words is "eighty-five million, four hundred forty-eight thousand, five hundred seventeen".