85043471 has 6 divisors (see below), whose sum is σ = 87170016. Its totient is φ = 82967600.

The previous prime is 85043459. The next prime is 85043473. The reversal of 85043471 is 17434058.

It is not a de Polignac number, because 85043471 - 2⁶ = 85043407 is a prime.

It is a super-3 number, since 3×85043471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85043473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23615 + ... + 26976.

It is an arithmetic number, because the mean of its divisors is an integer number (14528336).

Almost surely, 2^85043471 is an apocalyptic number.

85043471 is a deficient number, since it is larger than the sum of its proper divisors (2126545).

85043471 is an equidigital number, since it uses as much as digits as its factorization.

85043471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50673 (or 50632 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 85043471 is about 9221.9017019268. The cubic root of 85043471 is about 439.7579091799.

The spelling of 85043471 in words is "eighty-five million, forty-three thousand, four hundred seventy-one".