984867899 has 2 divisors, whose sum is σ = 984867900. Its totient is φ = 984867898.

The previous prime is 984867883. The next prime is 984867913. The reversal of 984867899 is 998768489.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 984867899 - 2⁴ = 984867883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (984867809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492433949 + 492433950.

It is an arithmetic number, because the mean of its divisors is an integer number (492433950).

Almost surely, 2^984867899 is an apocalyptic number.

984867899 is a deficient number, since it is larger than the sum of its proper divisors (1).

984867899 is an equidigital number, since it uses as much as digits as its factorization.

984867899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62705664, while the sum is 68.

The square root of 984867899 is about 31382.6050384604. The cubic root of 984867899 is about 994.9303079896.

The spelling of 984867899 in words is "nine hundred eighty-four million, eight hundred sixty-seven thousand, eight hundred ninety-nine".