8897946971 has 2 divisors, whose sum is σ = 8897946972. Its totient is φ = 8897946970.

The previous prime is 8897946919. The next prime is 8897946991. The reversal of 8897946971 is 1796497988.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8897946971 - 2⁶ = 8897946907 is a prime.

It is not a weakly prime, because it can be changed into another prime (8897946901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4448973485 + 4448973486.

It is an arithmetic number, because the mean of its divisors is an integer number (4448973486).

Almost surely, 2^8897946971 is an apocalyptic number.

8897946971 is a deficient number, since it is larger than the sum of its proper divisors (1).

8897946971 is an equidigital number, since it uses as much as digits as its factorization.

8897946971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 68.

The square root of 8897946971 is about 94328.9296610536. The cubic root of 8897946971 is about 2072.1917376064.

The spelling of 8897946971 in words is "eight billion, eight hundred ninety-seven million, nine hundred forty-six thousand, nine hundred seventy-one".