408106999 has 2 divisors, whose sum is σ = 408107000. Its totient is φ = 408106998.

The previous prime is 408106997. The next prime is 408107017. The reversal of 408106999 is 999601804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 408106999 - 2¹ = 408106997 is a prime.

Together with 408106997, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408106997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204053499 + 204053500.

It is an arithmetic number, because the mean of its divisors is an integer number (204053500).

Almost surely, 2^408106999 is an apocalyptic number.

408106999 is a deficient number, since it is larger than the sum of its proper divisors (1).

408106999 is an equidigital number, since it uses as much as digits as its factorization.

408106999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 408106999 is about 20201.6583230189. The cubic root of 408106999 is about 741.7507845060.

The spelling of 408106999 in words is "four hundred eight million, one hundred six thousand, nine hundred ninety-nine".