89989903 has 2 divisors, whose sum is σ = 89989904. Its totient is φ = 89989902.

The previous prime is 89989897. The next prime is 89989943. The reversal of 89989903 is 30998998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89989903 - 2¹⁷ = 89858831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89989943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44994951 + 44994952.

It is an arithmetic number, because the mean of its divisors is an integer number (44994952).

Almost surely, 2^89989903 is an apocalyptic number.

89989903 is a deficient number, since it is larger than the sum of its proper divisors (1).

89989903 is an equidigital number, since it uses as much as digits as its factorization.

89989903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 89989903 is about 9486.3008069532. The cubic root of 89989903 is about 448.1237152350.

The spelling of 89989903 in words is "eighty-nine million, nine hundred eighty-nine thousand, nine hundred three".