408870913 has 8 divisors (see below), whose sum is σ = 461422080. Its totient is φ = 358883280.

The previous prime is 408870871. The next prime is 408870941. The reversal of 408870913 is 319078804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408870913 - 2¹⁷ = 408739841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408870953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640545 + ... + 641182.

It is an arithmetic number, because the mean of its divisors is an integer number (57677760).

Almost surely, 2^408870913 is an apocalyptic number.

It is an amenable number.

408870913 is a deficient number, since it is larger than the sum of its proper divisors (52551167).

408870913 is a wasteful number, since it uses less digits than its factorization.

408870913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281767.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 408870913 is about 20220.5566936225. The cubic root of 408870913 is about 742.2133107771.

The spelling of 408870913 in words is "four hundred eight million, eight hundred seventy thousand, nine hundred thirteen".