999984463 has 2 divisors, whose sum is σ = 999984464. Its totient is φ = 999984462.

The previous prime is 999984457. The next prime is 999984499. The reversal of 999984463 is 364489999.

It is a weak prime.

It is an emirp because it is prime and its reverse (364489999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999984463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999924463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499992231 + 499992232.

It is an arithmetic number, because the mean of its divisors is an integer number (499992232).

Almost surely, 2^999984463 is an apocalyptic number.

999984463 is a deficient number, since it is larger than the sum of its proper divisors (1).

999984463 is an equidigital number, since it uses as much as digits as its factorization.

999984463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15116544, while the sum is 61.

The square root of 999984463 is about 31622.5309391895. The cubic root of 999984463 is about 999.9948209732.

The spelling of 999984463 in words is "nine hundred ninety-nine million, nine hundred eighty-four thousand, four hundred sixty-three".