103840447 has 2 divisors, whose sum is σ = 103840448. Its totient is φ = 103840446.

The previous prime is 103840439. The next prime is 103840487. The reversal of 103840447 is 744048301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103840447 - 2³ = 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 (103840487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51920223 + 51920224.

It is an arithmetic number, because the mean of its divisors is an integer number (51920224).

Almost surely, 2^103840447 is an apocalyptic number.

103840447 is a deficient number, since it is larger than the sum of its proper divisors (1).

103840447 is an equidigital number, since it uses as much as digits as its factorization.

103840447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 103840447 is about 10190.2132951180. The cubic root of 103840447 is about 470.0263256719.

Adding to 103840447 its reverse (744048301), we get a palindrome (847888748).

The spelling of 103840447 in words is "one hundred three million, eight hundred forty thousand, four hundred forty-seven".