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89820697 is a prime number
BaseRepresentation
bin1010101101010…
…00111000011001
320021000100211111
411112220320121
5140443230242
612525100321
72140314631
oct526507031
9207010744
1089820697
114677968a
12260b76a1
13157bb455
14bd016c1
157d43817
hex55a8e19

89820697 has 2 divisors, whose sum is σ = 89820698. Its totient is φ = 89820696.

The previous prime is 89820677. The next prime is 89820701. The reversal of 89820697 is 79602898.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87815641 + 2005056 = 9371^2 + 1416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89820697 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 89820697.

It is not a weakly prime, because it can be changed into another prime (89820617) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44910348 + 44910349.

It is an arithmetic number, because the mean of its divisors is an integer number (44910349).

Almost surely, 289820697 is an apocalyptic number.

It is an amenable number.

89820697 is a deficient number, since it is larger than the sum of its proper divisors (1).

89820697 is an equidigital number, since it uses as much as digits as its factorization.

89820697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 89820697 is about 9477.3781712033. The cubic root of 89820697 is about 447.8426733525.

The spelling of 89820697 in words is "eighty-nine million, eight hundred twenty thousand, six hundred ninety-seven".