104643971 has 2 divisors, whose sum is σ = 104643972. Its totient is φ = 104643970.

The previous prime is 104643923. The next prime is 104644051. The reversal of 104643971 is 179346401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104643971 - 2⁶ = 104643907 is a prime.

It is not a weakly prime, because it can be changed into another prime (104643901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52321985 + 52321986.

It is an arithmetic number, because the mean of its divisors is an integer number (52321986).

Almost surely, 2^104643971 is an apocalyptic number.

104643971 is a deficient number, since it is larger than the sum of its proper divisors (1).

104643971 is an equidigital number, since it uses as much as digits as its factorization.

104643971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 104643971 is about 10229.5635781787. The cubic root of 104643971 is about 471.2355764875.

The spelling of 104643971 in words is "one hundred four million, six hundred forty-three thousand, nine hundred seventy-one".