1928099 has 2 divisors, whose sum is σ = 1928100. Its totient is φ = 1928098.

The previous prime is 1928093. The next prime is 1928141. The reversal of 1928099 is 9908291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1928099 - 2¹² = 1924003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1928093) 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, 964049 + 964050.

It is an arithmetic number, because the mean of its divisors is an integer number (964050).

2^1928099 is an apocalyptic number.

1928099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928099 is an equidigital number, since it uses as much as digits as its factorization.

1928099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1928099 is about 1388.5600455148. The cubic root of 1928099 is about 124.4638153366.

The spelling of 1928099 in words is "one million, nine hundred twenty-eight thousand, ninety-nine".