10898561 has 2 divisors, whose sum is σ = 10898562. Its totient is φ = 10898560.

The previous prime is 10898543. The next prime is 10898593. The reversal of 10898561 is 16589801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 297025 = 3256^2 + 545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10898561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10898861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5449280 + 5449281.

It is an arithmetic number, because the mean of its divisors is an integer number (5449281).

Almost surely, 2^10898561 is an apocalyptic number.

It is an amenable number.

10898561 is a deficient number, since it is larger than the sum of its proper divisors (1).

10898561 is an equidigital number, since it uses as much as digits as its factorization.

10898561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 10898561 is about 3301.2968663845. The cubic root of 10898561 is about 221.7122655421.

The spelling of 10898561 in words is "ten million, eight hundred ninety-eight thousand, five hundred sixty-one".