9906810647 has 8 divisors (see below), whose sum is σ = 10229473920. Its totient is φ = 9584340480.

The previous prime is 9906810629. The next prime is 9906810671. The reversal of 9906810647 is 7460186099.

9906810647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9906810647 - 2¹⁶ = 9906745111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9906810595 and 9906810604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9906812647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59879 + ... + 152967.

It is an arithmetic number, because the mean of its divisors is an integer number (1278684240).

Almost surely, 2^9906810647 is an apocalyptic number.

9906810647 is a deficient number, since it is larger than the sum of its proper divisors (322663273).

9906810647 is a wasteful number, since it uses less digits than its factorization.

9906810647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96553.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 9906810647 is about 99532.9626154070. The cubic root of 9906810647 is about 2147.7214473919.

The spelling of 9906810647 in words is "nine billion, nine hundred six million, eight hundred ten thousand, six hundred forty-seven".