15006689 has 2 divisors, whose sum is σ = 15006690. Its totient is φ = 15006688.

The previous prime is 15006661. The next prime is 15006721. The reversal of 15006689 is 98660051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12780625 + 2226064 = 3575^2 + 1492^2 .

It is a cyclic number.

It is not a de Polignac number, because 15006689 - 2¹⁶ = 14941153 is a prime.

It is not a weakly prime, because it can be changed into another prime (15006389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7503344 + 7503345.

It is an arithmetic number, because the mean of its divisors is an integer number (7503345).

Almost surely, 2^15006689 is an apocalyptic number.

It is an amenable number.

15006689 is a deficient number, since it is larger than the sum of its proper divisors (1).

15006689 is an equidigital number, since it uses as much as digits as its factorization.

15006689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 15006689 is about 3873.8467961446. The cubic root of 15006689 is about 246.6578608576.

The spelling of 15006689 in words is "fifteen million, six thousand, six hundred eighty-nine".