85773447 has 12 divisors (see below), whose sum is σ = 125054280. Its totient is φ = 56647248.

The previous prime is 85773431. The next prime is 85773473. The reversal of 85773447 is 74437758.

85773447 is a `hidden beast` number, since 8 + 577 + 34 + 47 = 666.

It is not a de Polignac number, because 85773447 - 2⁴ = 85773431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85773407) 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, 43572 + ... + 45497.

It is an arithmetic number, because the mean of its divisors is an integer number (10421190).

Almost surely, 2^85773447 is an apocalyptic number.

85773447 is a deficient number, since it is larger than the sum of its proper divisors (39280833).

85773447 is a wasteful number, since it uses less digits than its factorization.

85773447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89182 (or 89179 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 85773447 is about 9261.3955211944. The cubic root of 85773447 is about 441.0125561390.

The spelling of 85773447 in words is "eighty-five million, seven hundred seventy-three thousand, four hundred forty-seven".