89775899 has 2 divisors, whose sum is σ = 89775900. Its totient is φ = 89775898.

The previous prime is 89775869. The next prime is 89776013. The reversal of 89775899 is 99857798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89775899 - 2¹⁶ = 89710363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89775869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44887949 + 44887950.

It is an arithmetic number, because the mean of its divisors is an integer number (44887950).

Almost surely, 2^89775899 is an apocalyptic number.

89775899 is a deficient number, since it is larger than the sum of its proper divisors (1).

89775899 is an equidigital number, since it uses as much as digits as its factorization.

89775899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 62.

The square root of 89775899 is about 9475.0144590919. The cubic root of 89775899 is about 447.7682072475.

The spelling of 89775899 in words is "eighty-nine million, seven hundred seventy-five thousand, eight hundred ninety-nine".