10389649 has 2 divisors, whose sum is σ = 10389650. Its totient is φ = 10389648.

The previous prime is 10389647. The next prime is 10389653. The reversal of 10389649 is 94698301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8410000 + 1979649 = 2900^2 + 1407^2 .

It is a cyclic number.

It is not a de Polignac number, because 10389649 - 2¹ = 10389647 is a prime.

Together with 10389647, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10389647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5194824 + 5194825.

It is an arithmetic number, because the mean of its divisors is an integer number (5194825).

Almost surely, 2^10389649 is an apocalyptic number.

It is an amenable number.

10389649 is a deficient number, since it is larger than the sum of its proper divisors (1).

10389649 is an equidigital number, since it uses as much as digits as its factorization.

10389649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 10389649 is about 3223.2978453751. The cubic root of 10389649 is about 218.2061358575.

The spelling of 10389649 in words is "ten million, three hundred eighty-nine thousand, six hundred forty-nine".