88266209 has 2 divisors, whose sum is σ = 88266210. Its totient is φ = 88266208.

The previous prime is 88266197. The next prime is 88266239. The reversal of 88266209 is 90266288.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67699984 + 20566225 = 8228^2 + 4535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88266209 is a prime.

It is not a weakly prime, because it can be changed into another prime (88266239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44133104 + 44133105.

It is an arithmetic number, because the mean of its divisors is an integer number (44133105).

Almost surely, 2^88266209 is an apocalyptic number.

It is an amenable number.

88266209 is a deficient number, since it is larger than the sum of its proper divisors (1).

88266209 is an equidigital number, since it uses as much as digits as its factorization.

88266209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 88266209 is about 9395.0097924377. The cubic root of 88266209 is about 445.2440844168.

The spelling of 88266209 in words is "eighty-eight million, two hundred sixty-six thousand, two hundred nine".