85898491 has 12 divisors (see below), whose sum is σ = 102627952. Its totient is φ = 70423056.

The previous prime is 85898471. The next prime is 85898503. The reversal of 85898491 is 19489858.

It is not a de Polignac number, because 85898491 - 2⁵ = 85898459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85898401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7896 + ... + 15301.

Almost surely, 2^85898491 is an apocalyptic number.

85898491 is a deficient number, since it is larger than the sum of its proper divisors (16729461).

85898491 is a wasteful number, since it uses less digits than its factorization.

85898491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23250 (or 23227 counting only the distinct ones).

The product of its digits is 829440, while the sum is 52.

The square root of 85898491 is about 9268.1438810584. The cubic root of 85898491 is about 441.2267607275.

The spelling of 85898491 in words is "eighty-five million, eight hundred ninety-eight thousand, four hundred ninety-one".