9906467957 has 2 divisors, whose sum is σ = 9906467958. Its totient is φ = 9906467956.

The previous prime is 9906467897. The next prime is 9906468053. The reversal of 9906467957 is 7597646099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8535172996 + 1371294961 = 92386^2 + 37031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9906467957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9906467957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9906464957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4953233978 + 4953233979.

It is an arithmetic number, because the mean of its divisors is an integer number (4953233979).

Almost surely, 2^9906467957 is an apocalyptic number.

It is an amenable number.

9906467957 is a deficient number, since it is larger than the sum of its proper divisors (1).

9906467957 is an equidigital number, since it uses as much as digits as its factorization.

9906467957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25719120, while the sum is 62.

The square root of 9906467957 is about 99531.2411105177. The cubic root of 9906467957 is about 2147.6966829083.

The spelling of 9906467957 in words is "nine billion, nine hundred six million, four hundred sixty-seven thousand, nine hundred fifty-seven".