8755991 has 2 divisors, whose sum is σ = 8755992. Its totient is φ = 8755990.

The previous prime is 8755973. The next prime is 8755997. The reversal of 8755991 is 1995578.

It is a happy number.

8755991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8755991 - 2¹⁴ = 8739607 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8755997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4377995 + 4377996.

It is an arithmetic number, because the mean of its divisors is an integer number (4377996).

Almost surely, 2^8755991 is an apocalyptic number.

8755991 is a deficient number, since it is larger than the sum of its proper divisors (1).

8755991 is an equidigital number, since it uses as much as digits as its factorization.

8755991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 44.

The square root of 8755991 is about 2959.0523820980. The cubic root of 8755991 is about 206.1112840138. Note that the first 3 decimals are identical.

The spelling of 8755991 in words is "eight million, seven hundred fifty-five thousand, nine hundred ninety-one".