88523009 has 2 divisors, whose sum is σ = 88523010. Its totient is φ = 88523008.

The previous prime is 88522921. The next prime is 88523023. The reversal of 88523009 is 90032588.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73530625 + 14992384 = 8575^2 + 3872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88523009 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88523009.

It is not a weakly prime, because it can be changed into another prime (88523089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44261504 + 44261505.

It is an arithmetic number, because the mean of its divisors is an integer number (44261505).

Almost surely, 2^88523009 is an apocalyptic number.

It is an amenable number.

88523009 is a deficient number, since it is larger than the sum of its proper divisors (1).

88523009 is an equidigital number, since it uses as much as digits as its factorization.

88523009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 88523009 is about 9408.6666961903. Note that the first 4 decimals coincide. The cubic root of 88523009 is about 445.6754611808.

The spelling of 88523009 in words is "eighty-eight million, five hundred twenty-three thousand, nine".