85491235 has 4 divisors (see below), whose sum is σ = 102589488. Its totient is φ = 68392984.

The previous prime is 85491229. The next prime is 85491239. The reversal of 85491235 is 53219458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85491235 - 2⁹ = 85490723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85491194 and 85491203.

It is not an unprimeable number, because it can be changed into a prime (85491239) 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 3 ways as a sum of consecutive naturals, for example, 8549119 + ... + 8549128.

It is an arithmetic number, because the mean of its divisors is an integer number (25647372).

Almost surely, 2^85491235 is an apocalyptic number.

85491235 is a deficient number, since it is larger than the sum of its proper divisors (17098253).

85491235 is a wasteful number, since it uses less digits than its factorization.

85491235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17098252.

The product of its digits is 43200, while the sum is 37.

The square root of 85491235 is about 9246.1470353872. The cubic root of 85491235 is about 440.5283511845.

The spelling of 85491235 in words is "eighty-five million, four hundred ninety-one thousand, two hundred thirty-five".