85471472 has 20 divisors (see below), whose sum is σ = 165758736. Its totient is φ = 42695040.

The previous prime is 85471403. The next prime is 85471483. The reversal of 85471472 is 27417458.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21893 + ... + 25499.

Almost surely, 2^85471472 is an apocalyptic number.

It is an amenable number.

85471472 is a deficient number, since it is larger than the sum of its proper divisors (80287264).

85471472 is a wasteful number, since it uses less digits than its factorization.

85471472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096 (or 5090 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 85471472 is about 9245.0782581869. The cubic root of 85471472 is about 440.4944029372.

The spelling of 85471472 in words is "eighty-five million, four hundred seventy-one thousand, four hundred seventy-two".