8771227957 has 2 divisors, whose sum is σ = 8771227958. Its totient is φ = 8771227956.

The previous prime is 8771227939. The next prime is 8771228041. The reversal of 8771227957 is 7597221778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8324920081 + 446307876 = 91241^2 + 21126^2 .

It is a cyclic number.

It is not a de Polignac number, because 8771227957 - 2¹¹ = 8771225909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8771227898 and 8771227907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8771227657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4385613978 + 4385613979.

It is an arithmetic number, because the mean of its divisors is an integer number (4385613979).

Almost surely, 2^8771227957 is an apocalyptic number.

It is an amenable number.

8771227957 is a deficient number, since it is larger than the sum of its proper divisors (1).

8771227957 is an equidigital number, since it uses as much as digits as its factorization.

8771227957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3457440, while the sum is 55.

The square root of 8771227957 is about 93654.8341357775. The cubic root of 8771227957 is about 2062.3077130170.

The spelling of 8771227957 in words is "eight billion, seven hundred seventy-one million, two hundred twenty-seven thousand, nine hundred fifty-seven".