99990029 has 2 divisors, whose sum is σ = 99990030. Its totient is φ = 99990028.

The previous prime is 99990001. The next prime is 99990043. The reversal of 99990029 is 92009999.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90687529 + 9302500 = 9523^2 + 3050^2 .

It is an emirp because it is prime and its reverse (92009999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99990029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99990049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49995014 + 49995015.

It is an arithmetic number, because the mean of its divisors is an integer number (49995015).

Almost surely, 2^99990029 is an apocalyptic number.

It is an amenable number.

99990029 is a deficient number, since it is larger than the sum of its proper divisors (1).

99990029 is an equidigital number, since it uses as much as digits as its factorization.

99990029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 47.

The square root of 99990029 is about 9999.5014375718. The cubic root of 99990029 is about 464.1434557544.

The spelling of 99990029 in words is "ninety-nine million, nine hundred ninety thousand, twenty-nine".