89286221 has 2 divisors, whose sum is σ = 89286222. Its totient is φ = 89286220.

The previous prime is 89286203. The next prime is 89286251. The reversal of 89286221 is 12268298.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46854025 + 42432196 = 6845^2 + 6514^2 .

It is a cyclic number.

It is not a de Polignac number, because 89286221 - 2¹⁴ = 89269837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89286251) 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, 44643110 + 44643111.

It is an arithmetic number, because the mean of its divisors is an integer number (44643111).

Almost surely, 2^89286221 is an apocalyptic number.

It is an amenable number.

89286221 is a deficient number, since it is larger than the sum of its proper divisors (1).

89286221 is an equidigital number, since it uses as much as digits as its factorization.

89286221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 89286221 is about 9449.1386379924. The cubic root of 89286221 is about 446.9526130602.

The spelling of 89286221 in words is "eighty-nine million, two hundred eighty-six thousand, two hundred twenty-one".