103840439 has 2 divisors, whose sum is σ = 103840440. Its totient is φ = 103840438.

The previous prime is 103840349. The next prime is 103840447. The reversal of 103840439 is 934048301.

Together with previous prime (103840349) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103840439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103840489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51920219 + 51920220.

It is an arithmetic number, because the mean of its divisors is an integer number (51920220).

Almost surely, 2^103840439 is an apocalyptic number.

103840439 is a deficient number, since it is larger than the sum of its proper divisors (1).

103840439 is an equidigital number, since it uses as much as digits as its factorization.

103840439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 103840439 is about 10190.2129025845. The cubic root of 103840439 is about 470.0263136015.

The spelling of 103840439 in words is "one hundred three million, eight hundred forty thousand, four hundred thirty-nine".