8690475991 has 2 divisors, whose sum is σ = 8690475992. Its totient is φ = 8690475990.

The previous prime is 8690475953. The next prime is 8690476001. The reversal of 8690475991 is 1995740968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8690475991 - 2⁷ = 8690475863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8690475901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4345237995 + 4345237996.

It is an arithmetic number, because the mean of its divisors is an integer number (4345237996).

Almost surely, 2^8690475991 is an apocalyptic number.

8690475991 is a deficient number, since it is larger than the sum of its proper divisors (1).

8690475991 is an equidigital number, since it uses as much as digits as its factorization.

8690475991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The square root of 8690475991 is about 93222.7225036901. The cubic root of 8690475991 is about 2055.9593392786.

The spelling of 8690475991 in words is "eight billion, six hundred ninety million, four hundred seventy-five thousand, nine hundred ninety-one".