984491 has 2 divisors, whose sum is σ = 984492. Its totient is φ = 984490.

The previous prime is 984481. The next prime is 984497. The reversal of 984491 is 194489.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 984491 - 2⁶ = 984427 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (984497) 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, 492245 + 492246.

It is an arithmetic number, because the mean of its divisors is an integer number (492246).

2⁹⁸⁴⁴⁹¹ is an apocalyptic number.

984491 is a deficient number, since it is larger than the sum of its proper divisors (1).

984491 is an equidigital number, since it uses as much as digits as its factorization.

984491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 984491 is about 992.2151984323. The cubic root of 984491 is about 99.4803375202.

The spelling of 984491 in words is "nine hundred eighty-four thousand, four hundred ninety-one".