99884000639 has 2 divisors, whose sum is σ = 99884000640. Its totient is φ = 99884000638.

The previous prime is 99884000611. The next prime is 99884000693. The reversal of 99884000639 is 93600048899.

Together with next prime (99884000693) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99884000639 - 2⁸ = 99884000383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99884000609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49942000319 + 49942000320.

It is an arithmetic number, because the mean of its divisors is an integer number (49942000320).

Almost surely, 2^99884000639 is an apocalyptic number.

99884000639 is a deficient number, since it is larger than the sum of its proper divisors (1).

99884000639 is an equidigital number, since it uses as much as digits as its factorization.

99884000639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 99884000639 in words is "ninety-nine billion, eight hundred eighty-four million, six hundred thirty-nine", and thus it is an aban number.