1798487 has 2 divisors, whose sum is σ = 1798488. Its totient is φ = 1798486.

The previous prime is 1798469. The next prime is 1798519. The reversal of 1798487 is 7848971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1798487 - 2¹⁰ = 1797463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1798427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899243 + 899244.

It is an arithmetic number, because the mean of its divisors is an integer number (899244).

2^1798487 is an apocalyptic number.

1798487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1798487 is an equidigital number, since it uses as much as digits as its factorization.

1798487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 44.

The square root of 1798487 is about 1341.0768061524. The cubic root of 1798487 is about 121.6099474996.

The spelling of 1798487 in words is "one million, seven hundred ninety-eight thousand, four hundred eighty-seven".