10989817 has 2 divisors, whose sum is σ = 10989818. Its totient is φ = 10989816.

The previous prime is 10989787. The next prime is 10989857. The reversal of 10989817 is 71898901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10265616 + 724201 = 3204^2 + 851^2 .

It is a cyclic number.

It is not a de Polignac number, because 10989817 - 2⁷ = 10989689 is a prime.

It is not a weakly prime, because it can be changed into another prime (10989857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5494908 + 5494909.

It is an arithmetic number, because the mean of its divisors is an integer number (5494909).

Almost surely, 2^10989817 is an apocalyptic number.

It is an amenable number.

10989817 is a deficient number, since it is larger than the sum of its proper divisors (1).

10989817 is an equidigital number, since it uses as much as digits as its factorization.

10989817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 10989817 is about 3315.0892898985. The cubic root of 10989817 is about 222.3293612354.

The spelling of 10989817 in words is "ten million, nine hundred eighty-nine thousand, eight hundred seventeen".