408857959 has 12 divisors (see below), whose sum is σ = 429929136. Its totient is φ = 388078592.

The previous prime is 408857957. The next prime is 408857963. The reversal of 408857959 is 959758804.

It is not a de Polignac number, because 408857959 - 2¹ = 408857957 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 (408857957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1554462 + ... + 1554724.

It is an arithmetic number, because the mean of its divisors is an integer number (35827428).

Almost surely, 2^408857959 is an apocalyptic number.

408857959 is a deficient number, since it is larger than the sum of its proper divisors (21071177).

408857959 is an equidigital number, since it uses as much as digits as its factorization.

408857959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 408857959 is about 20220.2363734947. The cubic root of 408857959 is about 742.2054723351.

The spelling of 408857959 in words is "four hundred eight million, eight hundred fifty-seven thousand, nine hundred fifty-nine".