89819903 has 2 divisors, whose sum is σ = 89819904. Its totient is φ = 89819902.

The previous prime is 89819887. The next prime is 89819923. The reversal of 89819903 is 30991898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89819903 - 2⁴ = 89819887 is a prime.

It is a super-2 number, since 2×89819903² = 16135229949858818, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89819923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44909951 + 44909952.

It is an arithmetic number, because the mean of its divisors is an integer number (44909952).

Almost surely, 2^89819903 is an apocalyptic number.

89819903 is a deficient number, since it is larger than the sum of its proper divisors (1).

89819903 is an equidigital number, since it uses as much as digits as its factorization.

89819903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 89819903 is about 9477.3362818885. The cubic root of 89819903 is about 447.8413537304.

The spelling of 89819903 in words is "eighty-nine million, eight hundred nineteen thousand, nine hundred three".