405899411 has 2 divisors, whose sum is σ = 405899412. Its totient is φ = 405899410.

The previous prime is 405899407. The next prime is 405899419. The reversal of 405899411 is 114998504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405899411 - 2² = 405899407 is a prime.

It is not a weakly prime, because it can be changed into another prime (405899419) 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 as a sum of consecutive naturals, namely, 202949705 + 202949706.

It is an arithmetic number, because the mean of its divisors is an integer number (202949706).

Almost surely, 2^405899411 is an apocalyptic number.

405899411 is a deficient number, since it is larger than the sum of its proper divisors (1).

405899411 is an equidigital number, since it uses as much as digits as its factorization.

405899411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 405899411 is about 20146.9454508618. The cubic root of 405899411 is about 740.4109058302.

The spelling of 405899411 in words is "four hundred five million, eight hundred ninety-nine thousand, four hundred eleven".