9917470903 has 2 divisors, whose sum is σ = 9917470904. Its totient is φ = 9917470902.

The previous prime is 9917470879. The next prime is 9917470933. The reversal of 9917470903 is 3090747199.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9917470903 - 2⁹ = 9917470391 is a prime.

It is a super-2 number, since 2×9917470903² (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 (9917470933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958735451 + 4958735452.

It is an arithmetic number, because the mean of its divisors is an integer number (4958735452).

Almost surely, 2^9917470903 is an apocalyptic number.

9917470903 is a deficient number, since it is larger than the sum of its proper divisors (1).

9917470903 is an equidigital number, since it uses as much as digits as its factorization.

9917470903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 9917470903 is about 99586.4996021047. The cubic root of 9917470903 is about 2148.4915254723.

The spelling of 9917470903 in words is "nine billion, nine hundred seventeen million, four hundred seventy thousand, nine hundred three".