85513897 has 8 divisors (see below), whose sum is σ = 98009856. Its totient is φ = 73087872.

The previous prime is 85513873. The next prime is 85513907. The reversal of 85513897 is 79831558.

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 85513897 - 2¹⁹ = 84989609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85513297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14833 + ... + 19774.

It is an arithmetic number, because the mean of its divisors is an integer number (12251232).

Almost surely, 2^85513897 is an apocalyptic number.

It is an amenable number.

85513897 is a deficient number, since it is larger than the sum of its proper divisors (12495959).

85513897 is a wasteful number, since it uses less digits than its factorization.

85513897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34967.

The product of its digits is 302400, while the sum is 46.

The square root of 85513897 is about 9247.3724376171. The cubic root of 85513897 is about 440.5672728022.

The spelling of 85513897 in words is "eighty-five million, five hundred thirteen thousand, eight hundred ninety-seven".