89921603 has 2 divisors, whose sum is σ = 89921604. Its totient is φ = 89921602.

The previous prime is 89921597. The next prime is 89921609. The reversal of 89921603 is 30612998.

It is a balanced prime because it is at equal distance from previous prime (89921597) and next prime (89921609).

It is a cyclic number.

It is not a de Polignac number, because 89921603 - 2⁶ = 89921539 is a prime.

It is not a weakly prime, because it can be changed into another prime (89921609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44960801 + 44960802.

It is an arithmetic number, because the mean of its divisors is an integer number (44960802).

Almost surely, 2^89921603 is an apocalyptic number.

89921603 is a deficient number, since it is larger than the sum of its proper divisors (1).

89921603 is an equidigital number, since it uses as much as digits as its factorization.

89921603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 89921603 is about 9482.7001956194. The cubic root of 89921603 is about 448.0103151191.

The spelling of 89921603 in words is "eighty-nine million, nine hundred twenty-one thousand, six hundred three".