9169898971 has 2 divisors, whose sum is σ = 9169898972. Its totient is φ = 9169898970.

The previous prime is 9169898963. The next prime is 9169898989. The reversal of 9169898971 is 1798989619.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9169898971 - 2³ = 9169898963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9169898897 and 9169898906.

It is not a weakly prime, because it can be changed into another prime (9169890971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4584949485 + 4584949486.

It is an arithmetic number, because the mean of its divisors is an integer number (4584949486).

Almost surely, 2^9169898971 is an apocalyptic number.

9169898971 is a deficient number, since it is larger than the sum of its proper divisors (1).

9169898971 is an equidigital number, since it uses as much as digits as its factorization.

9169898971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 67.

The square root of 9169898971 is about 95759.5894466972. The cubic root of 9169898971 is about 2093.0913534043.

The spelling of 9169898971 in words is "nine billion, one hundred sixty-nine million, eight hundred ninety-eight thousand, nine hundred seventy-one".