99000900073 has 2 divisors, whose sum is σ = 99000900074. Its totient is φ = 99000900072.

The previous prime is 99000900067. The next prime is 99000900121. The reversal of 99000900073 is 37000900099.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98915282064 + 85618009 = 314508^2 + 9253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99000900073 is a prime.

It is not a weakly prime, because it can be changed into another prime (99000900013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49500450036 + 49500450037.

It is an arithmetic number, because the mean of its divisors is an integer number (49500450037).

Almost surely, 2^99000900073 is an apocalyptic number.

It is an amenable number.

99000900073 is a deficient number, since it is larger than the sum of its proper divisors (1).

99000900073 is an equidigital number, since it uses as much as digits as its factorization.

99000900073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 37.

The spelling of 99000900073 in words is "ninety-nine billion, nine hundred thousand, seventy-three".