9990000469 has 2 divisors, whose sum is σ = 9990000470. Its totient is φ = 9990000468.

The previous prime is 9990000451. The next prime is 9990000487. The reversal of 9990000469 is 9640000999.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (9990000451) and next prime (9990000487).

It can be written as a sum of positive squares in only one way, i.e., 5133722500 + 4856277969 = 71650^2 + 69687^2 .

It is an emirp because it is prime and its reverse (9640000999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9990000469 - 2³¹ = 7842516821 is a prime.

It is a super-2 number, since 2×9990000469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9990010469) 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 as a sum of consecutive naturals, namely, 4995000234 + 4995000235.

It is an arithmetic number, because the mean of its divisors is an integer number (4995000235).

Almost surely, 2^9990000469 is an apocalyptic number.

It is an amenable number.

9990000469 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990000469 is an equidigital number, since it uses as much as digits as its factorization.

9990000469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 9990000469 is about 99949.9898399194. The cubic root of 9990000469 is about 2153.7163393240.

The spelling of 9990000469 in words is "nine billion, nine hundred ninety million, four hundred sixty-nine", and thus it is an aban number.