1984799 has 2 divisors, whose sum is σ = 1984800. Its totient is φ = 1984798.

The previous prime is 1984793. The next prime is 1984813. The reversal of 1984799 is 9974891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1984799 - 2⁴ = 1984783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1984793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992399 + 992400.

It is an arithmetic number, because the mean of its divisors is an integer number (992400).

2^1984799 is an apocalyptic number.

1984799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1984799 is an equidigital number, since it uses as much as digits as its factorization.

1984799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 47.

The square root of 1984799 is about 1408.8289463239. The cubic root of 1984799 is about 125.6720918637.

The spelling of 1984799 in words is "one million, nine hundred eighty-four thousand, seven hundred ninety-nine".