400596899 has 2 divisors, whose sum is σ = 400596900. Its totient is φ = 400596898.

The previous prime is 400596883. The next prime is 400596929. The reversal of 400596899 is 998695004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400596899 - 2⁴ = 400596883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400596499) 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, 200298449 + 200298450.

It is an arithmetic number, because the mean of its divisors is an integer number (200298450).

Almost surely, 2^400596899 is an apocalyptic number.

400596899 is a deficient number, since it is larger than the sum of its proper divisors (1).

400596899 is an equidigital number, since it uses as much as digits as its factorization.

400596899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 400596899 is about 20014.9169121433. The cubic root of 400596899 is about 737.1726166962.

The spelling of 400596899 in words is "four hundred million, five hundred ninety-six thousand, eight hundred ninety-nine".