408871679 has 4 divisors (see below), whose sum is σ = 422061120. Its totient is φ = 395682240.

The previous prime is 408871663. The next prime is 408871681. The reversal of 408871679 is 976178804.

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

It is a cyclic number.

It is not a de Polignac number, because 408871679 - 2⁴ = 408871663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408811679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6594674 + ... + 6594735.

It is an arithmetic number, because the mean of its divisors is an integer number (105515280).

Almost surely, 2^408871679 is an apocalyptic number.

408871679 is a deficient number, since it is larger than the sum of its proper divisors (13189441).

408871679 is a wasteful number, since it uses less digits than its factorization.

408871679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13189440.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 408871679 is about 20220.5756347340. The cubic root of 408871679 is about 742.2137742771.

The spelling of 408871679 in words is "four hundred eight million, eight hundred seventy-one thousand, six hundred seventy-nine".