10388489 has 2 divisors, whose sum is σ = 10388490. Its totient is φ = 10388488.

The previous prime is 10388461. The next prime is 10388491. The reversal of 10388489 is 98488301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9504889 + 883600 = 3083^2 + 940^2 .

It is an emirp because it is prime and its reverse (98488301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10388489 is a prime.

Together with 10388491, 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 (10388419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5194244 + 5194245.

It is an arithmetic number, because the mean of its divisors is an integer number (5194245).

Almost surely, 2^10388489 is an apocalyptic number.

It is an amenable number.

10388489 is a deficient number, since it is larger than the sum of its proper divisors (1).

10388489 is an equidigital number, since it uses as much as digits as its factorization.

10388489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 10388489 is about 3223.1179004188. The cubic root of 10388489 is about 218.1980146804.

The spelling of 10388489 in words is "ten million, three hundred eighty-eight thousand, four hundred eighty-nine".