99999063 has 16 divisors (see below), whose sum is σ = 148543200. Its totient is φ = 66487680.

The previous prime is 99999043. The next prime is 99999073. The reversal of 99999063 is 36099999.

It is not a de Polignac number, because 99999063 - 2⁶ = 99998999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999043) 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 in 15 ways as a sum of consecutive naturals, for example, 5743 + ... + 15263.

It is an arithmetic number, because the mean of its divisors is an integer number (9283950).

Almost surely, 2^99999063 is an apocalyptic number.

99999063 is a deficient number, since it is larger than the sum of its proper divisors (48544137).

99999063 is a wasteful number, since it uses less digits than its factorization.

99999063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919 (or 9913 counting only the distinct ones).

The product of its (nonzero) digits is 1062882, while the sum is 54.

The square root of 99999063 is about 9999.9531498903. The cubic root of 99999063 is about 464.1574336338.

The spelling of 99999063 in words is "ninety-nine million, nine hundred ninety-nine thousand, sixty-three".