9990389467 has 2 divisors, whose sum is σ = 9990389468. Its totient is φ = 9990389466.

The previous prime is 9990389459. The next prime is 9990389483. The reversal of 9990389467 is 7649830999.

It is a weak prime.

It is an emirp because it is prime and its reverse (7649830999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9990389467 - 2³ = 9990389459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9990389399 and 9990389408.

It is not a weakly prime, because it can be changed into another prime (9990389407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995194733 + 4995194734.

It is an arithmetic number, because the mean of its divisors is an integer number (4995194734).

Almost surely, 2^9990389467 is an apocalyptic number.

9990389467 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990389467 is an equidigital number, since it uses as much as digits as its factorization.

9990389467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952, while the sum is 64.

The square root of 9990389467 is about 99951.9357841558. The cubic root of 9990389467 is about 2153.7442932924.

The spelling of 9990389467 in words is "nine billion, nine hundred ninety million, three hundred eighty-nine thousand, four hundred sixty-seven".