1409899 has 2 divisors, whose sum is σ = 1409900. Its totient is φ = 1409898.

The previous prime is 1409879. The next prime is 1409917. The reversal of 1409899 is 9989041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1409899 - 2¹¹ = 1407851 is a prime.

It is not a weakly prime, because it can be changed into another prime (1409869) 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, 704949 + 704950.

It is an arithmetic number, because the mean of its divisors is an integer number (704950).

2^1409899 is an apocalyptic number.

1409899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1409899 is an equidigital number, since it uses as much as digits as its factorization.

1409899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1409899 is about 1187.3916792702. The cubic root of 1409899 is about 112.1319395355.

The spelling of 1409899 in words is "one million, four hundred nine thousand, eight hundred ninety-nine".