10439917 has 2 divisors, whose sum is σ = 10439918. Its totient is φ = 10439916.

The previous prime is 10439857. The next prime is 10439939. The reversal of 10439917 is 71993401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7502121 + 2937796 = 2739^2 + 1714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10439917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10439617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5219958 + 5219959.

It is an arithmetic number, because the mean of its divisors is an integer number (5219959).

Almost surely, 2^10439917 is an apocalyptic number.

It is an amenable number.

10439917 is a deficient number, since it is larger than the sum of its proper divisors (1).

10439917 is an equidigital number, since it uses as much as digits as its factorization.

10439917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 10439917 is about 3231.0860403276. The cubic root of 10439917 is about 218.5574837367.

The spelling of 10439917 in words is "ten million, four hundred thirty-nine thousand, nine hundred seventeen".