984997019 has 2 divisors, whose sum is σ = 984997020. Its totient is φ = 984997018.

The previous prime is 984996979. The next prime is 984997037. The reversal of 984997019 is 910799489.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 984997019 - 2²⁰ = 983948443 is a prime.

It is a super-2 number, since 2×984997019² = 1940438254877772722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (984997049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492498509 + 492498510.

It is an arithmetic number, because the mean of its divisors is an integer number (492498510).

Almost surely, 2^984997019 is an apocalyptic number.

984997019 is a deficient number, since it is larger than the sum of its proper divisors (1).

984997019 is an equidigital number, since it uses as much as digits as its factorization.

984997019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 984997019 is about 31384.6621616356. The cubic root of 984997019 is about 994.9737858299.

The spelling of 984997019 in words is "nine hundred eighty-four million, nine hundred ninety-seven thousand, nineteen".