88008821 has 2 divisors, whose sum is σ = 88008822. Its totient is φ = 88008820.

The previous prime is 88008799. The next prime is 88008853. The reversal of 88008821 is 12880088.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69639025 + 18369796 = 8345^2 + 4286^2 .

It is a cyclic number.

It is not a de Polignac number, because 88008821 - 2⁶ = 88008757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88008521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44004410 + 44004411.

It is an arithmetic number, because the mean of its divisors is an integer number (44004411).

Almost surely, 2^88008821 is an apocalyptic number.

It is an amenable number.

88008821 is a deficient number, since it is larger than the sum of its proper divisors (1).

88008821 is an equidigital number, since it uses as much as digits as its factorization.

88008821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8192, while the sum is 35.

The square root of 88008821 is about 9381.3016687451. The cubic root of 88008821 is about 444.8108795327.

The spelling of 88008821 in words is "eighty-eight million, eight thousand, eight hundred twenty-one".