10489889 has 2 divisors, whose sum is σ = 10489890. Its totient is φ = 10489888.

The previous prime is 10489861. The next prime is 10489933. The reversal of 10489889 is 98898401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10336225 + 153664 = 3215^2 + 392^2 .

It is a cyclic number.

It is not a de Polignac number, because 10489889 - 2¹⁶ = 10424353 is a prime.

It is a super-2 number, since 2×10489889² = 220075542464642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10489859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5244944 + 5244945.

It is an arithmetic number, because the mean of its divisors is an integer number (5244945).

Almost surely, 2^10489889 is an apocalyptic number.

It is an amenable number.

10489889 is a deficient number, since it is larger than the sum of its proper divisors (1).

10489889 is an equidigital number, since it uses as much as digits as its factorization.

10489889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 10489889 is about 3238.8098122613. The cubic root of 10489889 is about 218.9056466147.

It can be divided in two parts, 10489 and 889, that multiplied together give a triangular number (9324721 = T₄₃₁₈).

The spelling of 10489889 in words is "ten million, four hundred eighty-nine thousand, eight hundred eighty-nine".