8408471 has 4 divisors (see below), whose sum is σ = 8679744. Its totient is φ = 8137200.

The previous prime is 8408461. The next prime is 8408513. The reversal of 8408471 is 1748048.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8408471 is a prime.

It is a super-3 number, since 3×8408471³ (a number of 22 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 (8408401) 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, 135590 + ... + 135651.

It is an arithmetic number, because the mean of its divisors is an integer number (2169936).

Almost surely, 2^8408471 is an apocalyptic number.

8408471 is a deficient number, since it is larger than the sum of its proper divisors (271273).

8408471 is a wasteful number, since it uses less digits than its factorization.

8408471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271272.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 8408471 is about 2899.7363673272. The cubic root of 8408471 is about 203.3475808942.

The spelling of 8408471 in words is "eight million, four hundred eight thousand, four hundred seventy-one".