85036491 has 12 divisors (see below), whose sum is σ = 124024368. Its totient is φ = 56139984.

The previous prime is 85036477. The next prime is 85036513. The reversal of 85036491 is 19463058.

85036491 is a `hidden beast` number, since 8 + 5 + 0 + 3 + 649 + 1 = 666.

It is not a de Polignac number, because 85036491 - 2¹⁷ = 84905419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85036411) 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 11 ways as a sum of consecutive naturals, for example, 44940 + ... + 46793.

It is an arithmetic number, because the mean of its divisors is an integer number (10335364).

Almost surely, 2^85036491 is an apocalyptic number.

85036491 is a deficient number, since it is larger than the sum of its proper divisors (38987877).

85036491 is a wasteful number, since it uses less digits than its factorization.

85036491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91842 (or 91839 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 85036491 is about 9221.5232472732. The cubic root of 85036491 is about 439.7458777088.

The spelling of 85036491 in words is "eighty-five million, thirty-six thousand, four hundred ninety-one".