85573471 has 4 divisors (see below), whose sum is σ = 85655944. Its totient is φ = 85491000.

The previous prime is 85573469. The next prime is 85573493. The reversal of 85573471 is 17437558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17437558 = 2 ⋅8718779.

It is a cyclic number.

It is not a de Polignac number, because 85573471 - 2¹ = 85573469 is a prime.

It is a super-3 number, since 3×85573471³ (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 (85573421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39660 + ... + 41761.

It is an arithmetic number, because the mean of its divisors is an integer number (21413986).

Almost surely, 2^85573471 is an apocalyptic number.

85573471 is a deficient number, since it is larger than the sum of its proper divisors (82473).

85573471 is a wasteful number, since it uses less digits than its factorization.

85573471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82472.

The product of its digits is 117600, while the sum is 40.

The square root of 85573471 is about 9250.5930080185. The cubic root of 85573471 is about 440.6695573940.

The spelling of 85573471 in words is "eighty-five million, five hundred seventy-three thousand, four hundred seventy-one".