408875851 has 2 divisors, whose sum is σ = 408875852. Its totient is φ = 408875850.

The previous prime is 408875849. The next prime is 408875893. The reversal of 408875851 is 158578804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 408875851 - 2¹ = 408875849 is a prime.

Together with 408875849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (408875651) 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 as a sum of consecutive naturals, namely, 204437925 + 204437926.

It is an arithmetic number, because the mean of its divisors is an integer number (204437926).

Almost surely, 2^408875851 is an apocalyptic number.

408875851 is a deficient number, since it is larger than the sum of its proper divisors (1).

408875851 is an equidigital number, since it uses as much as digits as its factorization.

408875851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 358400, while the sum is 46.

The square root of 408875851 is about 20220.6787967170. The cubic root of 408875851 is about 742.2162987083.

The spelling of 408875851 in words is "four hundred eight million, eight hundred seventy-five thousand, eight hundred fifty-one".