408871671 has 12 divisors (see below), whose sum is σ = 590324328. Its totient is φ = 251613024.

The previous prime is 408871663. The next prime is 408871681. The reversal of 408871671 is 176178804.

It is a happy number.

It is not a de Polignac number, because 408871671 - 2³ = 408871663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408871601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402720 + ... + 403733.

It is an arithmetic number, because the mean of its divisors is an integer number (49193694).

Almost surely, 2^408871671 is an apocalyptic number.

408871671 is a deficient number, since it is larger than the sum of its proper divisors (181452657).

408871671 is a wasteful number, since it uses less digits than its factorization.

408871671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806482 (or 806469 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 408871671 is about 20220.5754369157. The cubic root of 408871671 is about 742.2137694364.

The spelling of 408871671 in words is "four hundred eight million, eight hundred seventy-one thousand, six hundred seventy-one".