99812633 has 2 divisors, whose sum is σ = 99812634. Its totient is φ = 99812632.

The previous prime is 99812579. The next prime is 99812639. The reversal of 99812633 is 33621899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75290329 + 24522304 = 8677^2 + 4952^2 .

It is a cyclic number.

It is not a de Polignac number, because 99812633 - 2¹⁰ = 99811609 is a prime.

It is not a weakly prime, because it can be changed into another prime (99812639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49906316 + 49906317.

It is an arithmetic number, because the mean of its divisors is an integer number (49906317).

Almost surely, 2^99812633 is an apocalyptic number.

It is an amenable number.

99812633 is a deficient number, since it is larger than the sum of its proper divisors (1).

99812633 is an equidigital number, since it uses as much as digits as its factorization.

99812633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 99812633 is about 9990.6272575850. The cubic root of 99812633 is about 463.8688085926.

It can be divided in two parts, 998 and 12633, that added together give a palindrome (13631).

The spelling of 99812633 in words is "ninety-nine million, eight hundred twelve thousand, six hundred thirty-three".